three × two =

1 + sixteen =

In Halo Reach multiplayer consists of split screen or single player games. You can make your own custom games with your own rules or you can find an onlilne match and play with people around the world. If you want to play online you have to select a certain playlist from the available ones. Once you select a playlist you will get to choose one of three game types in that setting. An example is if you choose Team Slayer, you will have options like team snipers on map 1, team DMR on map 2, or classic slayer on map 3. There’s a fourth option for none of the above. If there is a tie on any of the three then the one on top will win. There are even more game types on each playlist! I will list all the playlists and game modes with explanations on how to play them. The shorthand version of the current playlists are like so:

Competitive:

  • Rumble Pit
  • Team Slayer
  • Team SWAT
  • Team Objectives
  • Multi Team
  • Big Team Battle
  • Invasion
  • Living Dead
  • Team Snipers

Cooperative

  • Firefight
  • Co-Op Campaign
  • Score Attack

Arena

  • Doubles Arena
  • Team Arena

Bungie constantly changes what is in the playlists and what game types could be in each playlist. I may not be able to update this guide as fast as they do, so visit:
http://www.bungie.net/stats/reach/playlists.aspx
to stay up to date with the changes.
More info on each playlist are:

Competitive

Slayer, Objective, and Invasion playlists fit for squads of all skill levels.

Rumble Pit
Free For All Slayer with a dis of objective.
Max Party Size: 8
Max Local Players: 4

Game Types:
Slayer
Slayer Pro
Slayer DMRs
Elite Slayer
Headhunter
Oddball
Infection
Crazy King
Crazy King Pro
Juggernaut

Maps Playable
Arena Zealot
Asylum
Boardwalk
Cliffhanger
Countdown
Pinnacle
Powerhouse
Reflection
Sword Base
The Cage
Zealot

Team Slayer
4 on 4 Team Slayer.
Team Size: 3-4
Max Party Size: 8
Max Local Players: 4

Game Types
Slayer
Slayer Pro
Slayer DMRs
Elite Slayer

Maps Playable
Arena Zealot
Asylum
Atom
Boardwalk
Cliffhanger
Countdown
Pinnacle
Powerhouse
Reflection
Sword Base
The Cage

Team SWAT
Team Size: 3-4
Max Party Size: 8
Max Local Players: 4

Game Types
SWAT
SWAT Magnums

Maps Playable
Arena Zealot
Asylum
Boardwalk
Cliffhanger
Countdown
Pinnacle
Powerhouse
Reflection
Swordbase
The Cage

Team Objective
4 on 4 Team Objective
Team Size: 3-4
Max Party Size: 8
Max Local Players; 4

Game Types
1 Flag CTF
1 Flag Pro
Multiflag CTF
2 Flag Pro
2 Flag Classic
Neutral Bomb
1 Bomb Assault
Team Headhunter
Oddball
Team Hot Potato
Stockpile
Stockpile Pro
3 Plots
Territories
Crazy King
Crazy King Pro

Maps Playable
Atom
Asylum
Boardwalk
Cliffhanger
Countdown
Hemorrhage
Pinnacle
Powerhouse
Reflection
Sword Base
The Cage
Zealot

Multi Team
Slayer and Objective games pitting 6 teams of 2 against each other.
Team Size: 2
Max Party Size: 12
Max Local Players: 4

Game Types
Slayer
Elite Slayer
Oddball
Team Headhunter
Crazy King
Rocket Race

Maps Playable
Arena Zealot
Asylum
Atom
Boardwalk
Boneyard
Countdown
Hemorrhage
Paradiso
Pinnacle
Powerhouse
Reflection
Spire
Sword Base
Zealot

Big Team Battle
8 on 8 Big Team Slayer and objective Action.
Team Size: 6-8
Max Party Size: 16
Max Local Players: 2

Game Types
Big Team Slayer
BTB Snipers
Elite Slayer
Team Headhunter
1 Flag CTF
Multiflag CTF
Stockpile
Territories

Maps Playable
Atom
Boardwalk
Boneyard
Countdown
Hemorrhage
Paradiso
Spire

Invasion
6 on 6 Spartans vs Elites featuring Invasion and Invasion Slayer.
Team Size: 6
Max Party Size: 12
Max Local Players: 4

Game Types
Invasion
Invasion Slayer

Maps Playable
Boneyard
Hemorrhage
Paradiso
Spire

Team Snipers
Everyone has a sniper rifle and a magnum with infinite ammo. Snipers pro is team snipers without a magnum.
Team Size: 3-4
Max Party Size: 8
Max Local Players: 4

Game Types
Snipers
Snipers Pro

Maps Playable:
Atom
Boardwalk
Hemorrhage
Pinnacle
Powerhouse
Reflection
The Cage

Living Dead
4 vs 4 on zombie game types.
Max Party Size: 8
Max Local Players: 4

Game Types:
Infection
Safe Havens

Maps Playable:
Asylum
Boardwalk
Countdown
Pinnacle
Powerhouse
Reflection
Swordbase
The Cage
Arena Zealot

Cooperative

Cooperative Campaign and Firefight over Xbox LIVE.

Firefight
1 team of 4 takes on the standard firefight experience.
Team Size: 2-4
Max Party Size: 4
Max Local Players: 2

Game Types
Firefight
Rocketfight
Sniperfight
Generator Defense

Maps Playable
Overlook
Courtyard
Waterfront
Corvette
Beachhead
Outpost
Holdout
Glacier

Score Attack
Put your friends to shame with a high leaderboard score in this Firefight playlist.
Although this is in the cooperative playlist you’re actually alone. You fight against waves of enemies with a 15 minute time limit and 10 lives.
Team Size: 1
Max Party Size: 1
Max Local Players: 1

Game Types
Score Attack
Sniper Attack
Gruntpocalypse
Crashsite
Mythic Attack

Maps Playable
Overlook
Courtyard
Waterfront
Corvette
Beachhead
Outpost
Holdout
Glacier

Co-Op Campaign
4 Player co-op campaign. Mission and difficulty are selected via majority vote.

Arena

Seasonally Ranked Slayer. Divisions assigned via individual skill level. To find out more info on the Arena playlist you can go to http://www.bungie.net/arena There you will find tons of info on how it works.

Doubles Arena
2 teams of 2 put their skill to the test.
Team Size: 2
Max Party Size: 2
Max Local Players: 2

Game Types
Slayer Pro
Slayer DMRs

Maps Playable
Asylum
Boardwalk
Countdown
Pinnacle
Powerhouse
Reflection
Sword Base
The Cage
Zealot
Arena Zealot

Team Arena
2 teams of 4 square off in the Arena.
Team Size: 4
Max Party Size: 4
Max Local Players: 2

Game Types
Slayer DMRs

Maps Playable
Asylum
Boardwalk
Countdown
Pinnacle
Powerhouse
Reflection
Sword Base
The Cage
Zealot
Arena Zealot

Game Type Descriptions

Slayer (Classic/Pro/Elite)

Slayer is a basic game type. You just kill people to reach the score limit. There are a few variations on slayer such as Team Slayer which is the same as slayer, but with teams. There are also slayer variations where you use a certain weapon such as the DMR or Sniper Rifle. Time limit is usually 10-12 minutes. Score limit is 25 kills for slayer, 50 kills for team slayer, and 75 kills for big team slayer. The new version of slayer allows you to choose between the loadouts given. Each one has a certain weapon and armor ability.

Elite slayer is slayer using only elites and elite weapons (the big aliens are elites).

Slayer Pro is almost like MLG rules. You are given two loadouts. One is a DMR and two frags. The second is a Needle Rifle and two plasma grenades. Both have the sprint ability. Pro versions of all game modes have the same set ups.

Classic Slayer is the old slayer without loadouts, your only armor ability is sprint, and it seems no assassination animation. There’s still radar and all the other good stuff.

Swat

Swat is a variation of slayer or sometimes other match types You have no shields, no radar, no grenades, and your loadout is the sprint ability with the DMR and Pistol with infinite ammo. Some maps allow you to pick up other weapons.

Headhunter

Kill people and collect their skulls. Everyone can view how many skulls you have so the higher amount, the bigger the target you are. Deposit the skulls into a territory that changes around the maps. First team to 25 skulls (50 on big team) wins unless someone deposits 10 skulls at once for a skullamanjaro.

Oddball

Hold onto a skull to gain points. 150 points to win the game. While holding the skull you cannot use any weapons but you can melee with the skull for a one hit kill. While holding the ball your speed is halved. You cannot use any armor abilities or you will drop the ball.

Infection/Safe Haven

Two Teams. One team is regular and the other are infected. Once an infected kills a regular player, the regular player respawns as an infected. The regular players fight to survive to the end of the round. Each round is 4 minutes long or until all survivors becomes infected. Each kill scores a point for your team. The team with the most points at the end of the game wins. Survivors have shotguns with limited ammo, a bit of an overshield and sprint ability. Infected have energy swords with infinite ammo, no shields, dodge ability, and markers to find the regular players on the map using their HUD.

In safe haven you are given random locations that you can enter and become safe from being infected. However, you can be knocked out of the safe haven by infected and become infected.

Race/Rally

Race and Rally are basically races to the finish. Race is a race to the finish while rally is a race to the finish while driving through flags to earn points. Everyone drives mongooses. It is possible to fall off. If you fall off and can’t get back on, you will automatically be put back on after a few seconds.

Capture The Flag

Teams fight each other to steal the others flag and return them to their base. Sometimes the rules say your flag has to be at your base to capture the enemy flag. There are variations of CTF including one flag and switching between offense and defense.

Assault

Two teams face off against each other to detonate a bomb in the others base. Usually first to three detonations wins.

Invasion

Spartans vs Elites.
6 players vs 6 players face eachother. Spartans vs Elites. This is mostly an objective games with 3 phases. One team is on defense and the other is on offense. The offensive team’s objective is to destroy a certain area that the defensive team is protecting. If the time runs out (4:00 time limit) then the defensive team wins the round. If the objective is destroyed, the offensive team must destroy another objective and then capture the third objective and bring it to a set location. There are 2 rounds and if time runs out on both rounds then the team with the most objective captures wins. The more phases you go through the more loadouts you have access to.

Invasion Slayer

A variation of Invasion that focuses on kills. Territories will pop up all over the map. Capture them to activate a drop for a weapon or vehicle depending on the phase of the game. 15 minute time limit and 100 kill score limit. You get better loadouts as time goes by or score goes up.

Phase 1

  • Time/Score Limit: 0-25 kills, or until the 4 minute mark
  • Spartan Drops: Weapons (Rocket Launcher, Sniper Rifle)
  • Elite Drops: Weapons (Plasma Launcher, Focus Rifle), or a Ghost

Phase 2

  • Time/Score Limit: 26-50 kills, or until the 8 minute mark
  • Spartan Drops: Weapons, or a Warthog
  • Elite Drops: Weapons, or a Ghost, or a Banshee

Phase 3

  • Time/Score Limit: 51-75 kills, or until the 12 minute mark
  • Spartan Drops: Weapons, or a Warthog, or a Scorpion
  • Elite Drops: Weapons, or a Ghost, or a Banshee, or a Wraith

Juggernaut

The objective of this game is to reach 150 points to win the game. You are given a 10 minute time limit.

One person is the “Juggernaut.” The Juggernaut is given a gravity hammer with infinite energy, an overshield, and he moves faster than regular players. The Juggernaut cannot pick up any other weapons. He is marked with a red marker so he cannot hide anywhere on the map. If he commit suicide then a new juggernaut is chosen. Each kill he gets is 10 points.

The regular players are given an Assault Rifle, a Magnum, and the Sprint ability to start out with. If they kill the Juggernaut they become the juggernaut and the former juggernaut becomes a regular player. Each kill they get is 5 points.

Crazy King/King of the Hill

Reach the “hill” that’s surrounded by a white field. Battles others for control of the hill and the first one to reach 150 points wins. If others are in the hill area then the points may stop counting. The hill will move every few seconds.

Stockpile

From Bungie.net:
“Two teams scrap over four neutral flags. Flags are scored by bringing them into your team’s designated territory and protecting them until the timer reaches zero. Flags are collected every sixty seconds. If the flag is outside the zone, even if you have it in your hands, it won’t count. If you allow a player on the other team to infiltrate your territory and toss all your flags outside the clearly marked boundaries, those won’t count either.

There are two ways to win:

  1. Score a total of 10 Flags.
  2. Score the most flags in the ten minutes allotted.

Sounds pretty simple, right? It’s actually really nuanced. There’s a lot of push/pull going on and a coordinated team can employ multiple strategies to keep things mixed up.”

Territories

Variations of territories include 3-Plot Territories, Land Grab, and Territories. All have the same basic principle, capture flags. You stand next to flags set throughout the map. The more players you have on a flag the faster it will capture.

3-Plot Territories give three flags. Teams fight over the flag positions. The more flags a team has the more points they earn. The first team to 300 points wins the game.

Land Grab is very similar to territories. There are 5 neutral flags and a 5 minute time limit. The match ends with one team capturing all 5 flags or when the time reaches it’s limit. Once a flag is capture it becomes locked and nobody else can capture it.

Territories is when you capture flags and earn points. There are two rounds, 3 minutes in length for each round. Capture up to five flags. One team is on defense and one team is on offense. When all 5 flags are captured, or the time limit is up, then the round is over. The team with the most flag captures at the end of both rounds wins.

Ranks

Halo Reach has changed up the ranks quite a bit. You now rank up depending on the amount of credits you have. You earn credits depending on the badges you earn in and after matches. You also get special challenges per day and per week. If you spend your credits you will not lose your ranks! The ranks are like so:

Number of the Rank / Name of the Rank / cR needed to rank up (cR total) / Armor Unlocked and Available for Purchase
1. Recruit: 0 cR – Mark V {B} Helmet and Variants | CQC Helmet | ODST Helmet | HAZOP Helmet | Recon Helmet (with activation code) | FJ/PARA Shoulder | HAZOP Shoulders | JFO Shoulders | Jump Jet Shoulders | EVA Shoulders | HP/Halo Chest | Minor Elite Armor |
2. Private: 7500 (7,500) cR
3. Corporal: 2500 (10,000) cR – ODST UA/CNM Helmet Variant | Recon Shoulders | UA Multi-Threat Shoulders | UA/Counter Assault Chest | Spec Ops Elite Armor |
4. Corporal Grade 1: 2500 (12,500) cR
5. Sergeant: 5000 (20,000) cR – CQC CBRN and UA/HRL Helmet Variants | HAZOP CBRN/HUL Helmet Variant | EOD Helmet | Operations Helmet | Tactical/LRP Chest | UA/Buckler Wrists | Silver Visor | FJ PARA Knee Guards | Ranger Elite Armor |
6. Sergeant Grade 1: 6250 (26,250) cR
7. Sergeant Grade 2: 6250 (32,500) cR
8. Warrant Officer: 12500 (45,000) cR – ODST CRBN/HUL Helmet Variant | Grenadier Helmet | Air Assault Helmet | GUNGNIR Shoulders | UA/ODST Chest | Tactical Recon Chest | UA/Bracer Wrists | Blue Visor | Zealot Elite Armor |
9. Warrant Officer Grade 1: 33000 (78,000) cR
10. Warrant Officer Grade 2: 33000 (111,000) cR
11. Warrant Officer Grade 3: 33000 (144,000) cR
12. Captain: 99000 (210,000) cR – HAZOP CNM-I Helmet Variant | Scout Helmet | ODST Shoulders | Collar/Grenadier Chest | Tactical Hardcase Utility | GUNGNIR Knee Guards | Zealot Elite Armor |
13. Captain Grade 1: 23000 (233,000) cR
14. Captain Grade 2: 23000 (256,000) cR
15. Captain Grade 3: 23000 (279,000) cR
16. Major: 46000 (325,000) cR – EVA Helmet | Tactical Tacpad Wrists | UA/NXRA Utility | General Elite Armor | UA/Base Security Shoulders | Tactical/Patrol Chest |
17. Major Grade 1: 25000 (350,000) cR
18. Major Grade 2: 25000 (375,000) cR
19. Major Grade 3: 25000 (400,000) cR
20. Lt. Colonel: 50000 (450,000) cR – JFO Helmet | Black Visor | Grenadier Knee Guards | Field Marshal Elite Armor | MJOLNIR Mk. V Helmet | Tactical/UGPS Wrist | Collar/Breacher Chest | CQC Shoulders |
21. Lt. Colonel Grade 1: 30000 (480,000) cR
22. Lt. Colonel Grade 2: 30000 (510,000) cR
23. Lt. Colonel Grade 3: 30000 (540,000) cR
24. Commander: 60000 (600,000) cR – Commando Helmet | Pilot Helmet |Operator Shoulder | Commando Shoulder | Assault/Sapper Chest |
25. Commander Grade 1: 50000 (650,000) cR
26. Commander Grade 2: 50000 (700,000) cR
27. Commander Grade 3: 50000 (750,000) cR
28. Colonel: 100000 (850,000) cR – Gold Visor |
29. Colonel Grade 1: 110000 (960,000) cR
30. Colonel Grade 2: 110000 (1,070,000) cR
31. Colonel Grade 3: 110000 (1,180,000) cR
32. Brigadier: 220000 (1,400,000) cR
33. Brigadier Grade 1: 120000 (1,520,000) cR
34. Brigadier Grade 2: 120000 (1,640,000) cR
35. Brigadier Grade 3: 120000 (1,760,000) cR
36. General: 240000 (2,000,000) cR
37. General Grade 1: 200000 (2,200,000) cR
38. General Grade 2: 150000 (2,350,000) cR
39. General Grade 3: 150000 (2,500,000) cR
40. General Grade 4: 150000 (2,650,000) cR
41. Field Marshal: 350000 (3,000,000) cR
42. Hero: 700000 (3,700,000) cR
43. Legend: 900000 (4,600,000) cR
44. Mythic: 1050000 (5,650,000) cR
45. Noble: 1350000 (7,000,000) cR
46. Eclipse: 1500000 (8,500,000) cR
47. Nova: 2500000 (11,000,000) cR
48. Forerunner: 2000000 (13,000,000) cR
49. Reclaimer: 3500000 (16,500,000) cR
50. Inheritor: 3500000 (20,000,000) cR

-Once again, credit goes to Bungie.net for giving out the info on the ranks.

Challenges

In Halo Reach you can complete challenges throughout the game to earn cR. They change each day or each week depending on the challenge. Some challenges are for campaign and some are for firefight or online multiplayer.

cR Credits

Credits, or as the game calls them “cR,” is what you use to rank up and buy things from the armory in Halo Reach. For more info on items you can buy in the armory head to the armory section of this guide.

Credits are the main way you rank up in Halo Reach. Once you reach a set number of cR you will rank up. This does not mean that you will de-rank if you spend your cR. The total amount of cR will be hidden from regular view and will always be there. You can search for the total amount of cR you have by visiting bungie. So to make it clear I will give an example. Lets say you earned 5000 cR and got to the rank of private. You see an armor piece worth 4000 cR that you want. You can buy it and your cR will drop to 1000 cR; however, you will not lose you rank and I will not take longer to rank up to the next level of private. If you view your stats at bungie it will still say you have 5000 cR total, but only 1000 will be available/left to spend.

Credits are awarded to you in various ways. You can earn credits by playing matchmaking, campaign, custom games, using forge, or using theater mode. The amount of cR you earn depends on the things you do or the time you spend in each mode. You also get cR for completing daily/weekly challenges and earning commendations. The credits are given like so:

Commendations
Commendation credits vary on the commendation.
Iron: 100cR – 250cR
Bronze: 400cR – 750cR
Silver: 500cR – 1500cR
Gold: 400cR – 2500cR
Onyx: 400cR – 2500cR

Campaign
If you play a lot of campaign, the cR will lessen and eventually may not give you any cR at all.
Kill: 4cR (Grunts), 5cR (Jackals, Skirmishers, Brutes, and Hunters), 7cR (Elites)
Melee/Shotgun/Road Kill: 2cR (Gunts), 3cR (Jackals, Skirmishers, and Brutes), 5 cR (Elites)
Multi Kill: 6cR each (double is 6, triple is another 6, overkill is another 6)
Sprees: 6cR
Destroy an Enemy Vehicle: 4cR

Firefight
Kill: 4cR (Grunts), 5cR (Jackals, Skirmishers, Brutes, Engineers, and Hunters), 6 cR (Elites)
Melee/Shotgun/Road Kill: 2cR (Grunts), 3cR (Jackals, Skirmishers, and Brutes), 4 cR (Elites)
Headshot with a Headshot Weapon Kill*: 5cR (Grunts), 6cR (Jackals, Skirmishers, Brutes, Engineers), 7 cR (Elites)
Assist: 4cR
Kill From the Grave: 5cR (Grunts), 6cR (Jackals, Skirmishers, Brutes, Engineers), 7 cR (Elites)
Multi Kill: 5cR each (double is 5, triple is another 5, overkill is another 5)
Sprees: 5cR

Multiplayer
Kill: 4cR
Melee/Shotgun/Road Kill: 6cR
Assist: 6cR
Sprees: 10cR
Multi Kill: 10cR each
Any Weapon and Style Medal: 7cR

*I used “headshot weapon” for lack of a better phrase. What I mean are the weapons that do extra damage to the head. I thought they were the precision weapons but I learned there are other weapons that are not precision weapons and do extra headshot damage. And vice versa. The headshot weapons are:
Sniper Rifle
Magnum
DMR
Needle Rifle

Just to be clear, melee kills are any of the hit type kills. That includes regular arm melee, gravity hammer, energy sword, and assassinations. I list kills as all types of kills from any gun or grenade with the exception of shotguns and melee weapons. Firefight gives you an extra point for headshots with precision weapons so there are three separate ways to kill people on firefight. Sprees, Multi Kills, and Weapon and Style kills are explained in the next section with the medals.

If you quit the game early in matchmaking or you don’t do anything, then you will not earn any cR.

Medals

Reach has added more medals than before! If you don’t know what medals are then let me tell you. Medals are small challenges or ways to play a game that give you cR and small pictures called medals. They are saved on your account forever and can be accessed on bungie.net. There are various medals which you can earn in Multiplayer, Campaign scoring, or Firefight. Some are exclusive or changed to that game mode. I will list all that I know. If they are not marked with a (Campaign) or (Firefight) then they’re probably on Multiplayer. They are:

Legendary Medals
Unfriggenbelievable: Kill 1000 opponents in a row without dying (Campaign/Firefight). Kill 40 enemies in a row without dying (Multiplayer).
Killionaire: Kill 10 opponents within 4 seconds.
Perfection: Win a slayer game without dying and scoring atleast 15 kills
Extermination: Wipe out an entire enemy team with atleast an overkill
Skullamanjaro: Score 10 skulls at once in headhunter.
Hero: Complete a wave as the last man standing (Firefight)

Multi Kills
In campaign or firefight it seems multikills must be within 1 second of eachother. If they voice says “double kill” or any of the medals then it’s too late to get another.
Double Kill: Kill 2 opponents within 4 seconds of each other
Triple Kill: Kill 3 opponents within 4 seconds of each other
Overkill: Kill 4 opponents within 4 seconds of each other
Killtacular: Kill 5 opponents within 4 seconds of each other
Killtrocity: Kill 6 opponents within 4 seconds of each other
Killimanjaro: Kill 7 opponents within 4 seconds of each other
Killtastrophe: Kill 8 opponents within 4 seconds of each other
Killapocalypse: Kill 9 opponents within 4 seconds of each other

Sprees
Killing Spree: Kill 10 opponents in one life (Campaign/Firefight). Kill 5 opponents in one life (Multiplayer).
Killing Frenzy: Kill 20 opponents in one life (Campaign/Firefight). Kill 10 opponents in one life (Multiplayer).
Running Riot: Kill 30 opponents in one life (Campaign/Firefight). Kill 15 opponents in one life (Multiplayer).
Rampage: Kill 40 opponents in one life (Campaign/Firefight). Kill 20 opponents in one life (Multiplayer).
Untouchable: Kill 50 opponents in one life (Campaign/Firefight). Kill 25 opponents in one life (Multiplayer).
Invincible: Kill 100 opponents in one life (Campaign/Firefight). Kill 30 opponents in one life (Multiplayer).
Inconceivable: Kill 500 opponents in one life (Campaign/Firefight). Kill 35 opponents in one life (Multiplayer).
Sniper Spree: Kill 5 opponents with a sniper weapon in one life.
Sharpshooter: Kill 10 opponents with a sniper weapon in one life.
Be the Bullet: Kill 15 opponents with a sniper weapon in one life.
Shotgun Spree: Kill 5 opponents with the shotgun without dying
Open Season: Kill 10 opponents with the shotgun without dying
Buck Wild: Kill 15 opponents with the shotgun without dying
Splatter Spree: Kill 5 opponents in one life by running them over with a vehicle
Vehicular Manslaughter: Kill 10 opponents in one life by running them over with a vehicle
Sunday Driver: Kill 15 opponents in one life by running them over with a vehicle
Sword Spree: Kill 5 opponents with the energy sword without dying
Slice ‘N Dice: Kill 10 opponents with the energy sword without dying
Cutting Crew: Kill 15 opponents with the energy sword without dying
Stick Spree: Kill 5 opponents with grenade sticks without dying
Sticky Fingers: Kill 10 opponents with grenade sticks without dying
Corrected: Kill 15 opponents with grenade sticks without dying
Hammer Spree: Kill 5 opponents with the gravity hammer without dying
Dream Crusher: Kill 10 opponents with the gravity hammer without dying
Wrecking Crew: Kill 15 opponents with the gravity hammer without dying
Assist Spree: Assist in killing 5 opponents without dying
Sidekick: Assist in killing 5 opponents without dying
Second Gunman: Assist in killing 5 opponents without dying
Laser Spree: Kill 5 opponents with the spartan laser without dying
Red Menace: Kill 10 opponents with the spartan laser without dying
Sunburst: Kill 15 opponents with the spartan laser without dying
Wheelman Spree: Be the driver of a vehicle when passengers kill 5 opponents
Road Hog: Be the driver of a vehicle when passengers kill 10 opponents
Road Rage: Be the driver of a vehicle when passengers kill 15 opponents
Spawn Spree: Spawn a teammate into the game 5 times without dying.
Wingman: Spawn a teammate into the game 10 times without dying.
Broseidon: Spawn a teammate into the game 15 times without dying.
Juggernaut Spree: Kill 5 opponents as the Juggernaut without dying
Immovable Object: Kill 10 opponents as the Juggernaut without dying
Unstoppable Force: Kill 15 opponents as the Juggernaut without dying
Infection Spree: Kill 5 humans as the zombie without dying.
Mmm… Brains: Kill 10 humans as the zombie without dying.
Thriller: Kill 15 humans as the zombie without dying.
Zombie Killing Spree: Kill 5 zombies as the human without dying.
Hell’s Janitor: Kill 10 zombies as the human without dying.
Hell’s Jerome: Kill 15 zombies as the human without dying.

Weapon and Style
Bulltrue: Kill an opponent that is in the act of a sword lunge
Splatter: Hit and kill an opponent with your vehicle.
Highjack: Board a land-based vehicle by forcibly removing the opponent in it.
Skyjack: Board an aircraft by forcibly removing the opponent in it.
Kill From the Grave!: Kill an opponent after you have died
Killjoy: End an opponent’s killing spree
Laser Kill: Kill an opponent using the spartan laser
Grenade Stick: Kill an opponent by sticking them with a plasma grenade
Sniper Kill: Get a headshot with a sniper weapon
Beat Down: Hit and kill an opponent with a melee attack from behind
Pummel: Hit and kill an opponent with a melee attack
Wheelman!: Be the driver of a vehicle when a passenger kills an opponent
Headshot: Kill an enemy with a headshot
Needle Kill: Score a kill by filling an opponent with enough needles to cause a detonation.
EMP Blast: Remove an opponent’s shield with an EMP blast.
Assist: Assist a teammate in killing an enemy (take out his shield and let the other kill him)
Revenge: Kill an opponent responsible for your previous death
First Strike: Earn the First kill of a match.
Reload This: Kill an opponent while they are reloading
Close Call: Kill an opponent while you are weakened and without a shield. Survive
Headcase: Kill a sprinting opponent with a headshot
Pull: Kill a jetpacking opponent.
Showstopper: Kill an opponent while they are performing an assassination
Yoink: Kill an enemy player while they’re being assasinated.
Rejection: Activate Armor Lock and survive massive damage
Avenger: Avenge a teammate’s death
Protector: Save a teammate by killing his foe
Firebird: Kill an enemy while you’re jet-packing
Assassin: Kill an opponent by performing an assassination.

Objective Medals
Hail to the King: Kill 5 enemies in one life while inside one hill in King of the Hill.
Bomb Planted: Plant a bomb in an assault game mode
Flag Score: Capture an enemy flag.
Flag Kill: Kill an enemy with a melee while holding a flag
Oddball Kill: Kill an enemy with a melee while holding the ball in oddball.
Killed Oddball Carrier: Kill the opponent oddball carried in oddball.
Killed Bomb Carrier: Kill the opponent bomb carrier in assault
Killed Flag Carrier: Kill the opponent flag carrier in CTF
Killed Juggernaut: Kill the juggernaut in a Juggernaut game.
Last Man Standing: Be the last human in an infection game.

Bungie.net Medals
Triple Double: Finish a game with double-digit kill, assists, and headshots.
H. Ryan Memorial: Kill wildlife in a campaign mission
Big Game Hunter: Get the highest point kill of all players in a co-op campaign or firefight session
Avenge Me: You were avenged by a teammate
Bros to the End: You were saved by a teammate.
Seek and Destroy: Kill the Ranger-Class Elite
Thank the Maker: Win a match when a Bungie Employee is on the other team in matchmaking or custom games.
Funkadelic: Play a game with Pestilence enabled for all players.
Party Animal: Play a game with Birthday Party enabled for all players.
Ennobled: Finish a campaign mission with four players on legendary difficulty
Steaktacular: Luke owes you a steak dinner – your team won and your opponents have less than 60% of your team’s score when score to win is atleast 50.
Linktacular: Play in a matchmade game composed of all bungie.net users

Commendations

Commendations are kind of like challenges or awards. You earn them by doing specific things a set number of times such as a certain amount of headshots in multiplayer. After earning the set number of headshots you will rank up to the next tier from regular to iron, to bronze, to silver, to gold. With each tier you will earn a set amount of cR depending on the commendation. The commendations are split up between multiplayer, campaign, and firefight. I give almost full credit to the Halo Wikia. You can view the constantly updated list there:

http://halo.wikia.com/wiki/Commendations

They list what it takes to reach each tier, like I did. Along with the tiers they also list how much cR you earn on each tier.

Campaign
These commendations can only be earned while playing campaign.

Pinpoint: Kill an enemy with a headshot
50 to Iron
300 to Bronze
500 to Silver
4000 to Gold
8000 to Onyx
20000 to Max

Demon: Complete a mission of the Reach Campaign
9 to Iron
18 to Bronze
81 to Silver
135 to Gold
270 to Onyx
540 to Max

Cannon Fodder: Kill an infantry-class enemy
250 to Iron
750 to Bronze
3000 to Silver
7000 to Gold
12000 to Onyx
20000 to Max

SpecOps: Kill a specialist-class enemy
175 to Iron
525 to Bronze
2100 to Silver
6000 to Gold
10000 to Onyx
14000 to Max

Leadership Element: Kill a leader-class enemy
100 to Iron
375 to Bronze
750 to Silver
3000 to Gold
6000 to Onyx
10000 to Max

Walking Tank: Earn a multi-kill
25 to Iron
175 to Bronze
500 to Silver
2000 to Gold
5000 to Onyx
9000 to Max

Precisely: Kill an enemy with a precision weapon
250 to Iron
750 to Bronze
4000 to Silver
10000 to Gold
20000 to Onyx
32000 to Max

Standard Issue: Kill an enemy with an automatic weapon
250 to Iron
750 to Bronze
3000 to Silver
6000 to Gold
10000 to Onyx
15000 to Max

Small Arms: Kill an enemy with a small arms weapon
250 to Iron
750 to Bronze
3000 to Silver
6000 to Gold
10000 to Onyx
16000 to Max

Nice Arm: Kill an enemy with greandes
50 to Iron
250 to Bronze
500 to Silver
4000 to Gold
8000 to Onyx
13000 to Max

War Machine: Kill an enemy with a vehicle
200 to Iron
500 to Bronze
800 to Silver
3200 to Gold
6400 to Onyx
14000 to Max

Splash Damage: Kill an enemy with a heavy weapon
100 to Iron
375 to Bronze
750 to Silver
1500 to Gold
3000 to Onyx
6000 to Max

Super Soldier: Earn a spree of any kind
25 to Iron
175 to Bronze
500 to Silver
2000 to Gold
5000 to Onyx
9000 to Max

Support Role: Earn an assist
100 to Iron
375 to Bronze
750 to Silver
1500 to Gold
3000 to Onyx
6000 to Max

Right of Way: Destroy an enemy occupied Vehicle
50 to Iron
525 to Bronze
1000 to Silver
2400 to Gold
4800 to Onyx
7200 to Max

Flawless Cowboy: Complete a mission on Heroic or Legendary without dying
5 to Iron
10 to Bronze
25 to Silver
50 to Gold
150 to Onyx
300 to Max

Multiplayer
These commendations can only be earned in online multiplayer matchmaking.

One Shot: Kill an enemy with a headshot
50 to Iron
250 to Bronze
1000 to Silver
4000 to Gold
8000 to Onyx
20000 to Max

Multikill: Earn a multikill
10 to Iron
125 to Bronze
500 to Silver
2500 to Gold
5000 to Onyx
15000 to Max

Any Spree: Earn a spree of any type
5 to Iron
50 to Bronze
250 to Silver
1000 to Gold
4000 to Onyx
10000 to Max

Assistant: Earn an assist
50 to Iron
250 to Bronze
1000 to Silver
4000 to Gold
8000 to Onyx
20000 to Max

Crack Shot: Kill an enemy with a precision weapon
100 to Iron
500 to Bronze
4000 to Silver
10000 to Gold
20000 to Onyx
32000 to Max

Close Quarters: Dispatch a foe using Close Quarters Combat
50 to Iron
125 to Bronze
400 to Silver
1600 to Gold
4000 to Onyx
8000 to Max

Downshift: Be a vehicle’s driver while a passenger kills an enemy
5 to Iron
50 to Bronze
750 to Silver
4000 to Gold
8000 to Onyx
20000 to Max

Trigger Man: Kill an enemy with an automatic weapon
100 to Iron
500 to Bronze
4000 to Silver
10000 to Gold
20000 to Onyx
32000 to Max

Side Arm: Kill an enemy with a small arms weapon
50 to Iron
250 to Bronze
1000 to Silver
4000 to Gold
8000 to Onyx
10000 to Max

Heavy Weapon: Kill an enemy with a heavy weapon
25 to Iron
150 to Bronze
750 to Silver
? to Gold
? to Onyx
? to Max

Mobile Asset: Kill an enemy with a vehicle
25 to Iron
125 to Bronze
500 to Silver
4000 to Gold
8000 to Onyx
14000 to Max

Grenadier: Kill an enemy with grenades
25 to Iron
125 to Bronze
500 to Silver
4000 to Gold
8000 to Onyx
14000 to Max

Rear Admiral: Assassinate an enemy
5 to Iron
25 to Bronze
100 to Silver
1000 to Gold
4000 to Onyx
8000 to Max

Jack of All Trades: Perform an incredible feat (earn a weapon and style medal)
50 to Iron
100 to Bronze
400 to Silver
1600 to Gold
4800 to Onyx
9600 to Max

Firefight
These commendations can only be earned in Firefight mode.

Dome Inspector: Kill an enemy with a headshot
50 to Iron
250 to Bronze
500 to Silver
4000 to Gold
8000 to Onyx
20000 to Max

Numbers Game: Earn a multi kill
25 to Iron
175 to Bronze
500 to Silver
2500 to Gold
5000 to Onyx
15000 to Max

Target Practice: Kill an infantry-class enemy
250 to Iron
750 to Bronze
3000 to Silver
7000 to Gold
12000 to Onyx
20000 to Max

Specialized: Kill a specialist-class enemy
175 to Iron
525 to Bronze
2000 to Silver
6000 to Gold
10000 to Onyx
14000 to Max

In Command: Kill a leader-class enemy
75 to Iron
375 to Bronze
1000 to Silver
3000 to Gold
6000 to Onyx
10000 to Max

Longshot: Kill an enemy with a precision weapon
250 to Iron
750 to Bronze
4000 to Silver
10000 to Gold
20000 to Onyx
32000 to Max

Riffin Through: Kill an enemy with an automatic weapon
250 to Iron
750 to Bronze
3000 to Silver
1000 to Gold
20000 to Onyx
32000 to Max

Trigger Happy: Kill an enemy with a small arms weapon
250 to Iron
750 to Bronze
3000 to Silver
6000 to Gold
10000 to Onyx
16000 to Max

Pull the Pin: Kill an enemy with grenades
50 to Iron
250 to Bronze
750 to Silver
3000 to Gold
5000 to Onyx
9000 to Max

Get Loud: Kill an enemy with a heavy weapon
100 to Iron
375 to Bronze
750 to Silver
2000 To Gold
4000 to Onyx
8000 to Max

Methodical: Earn a spree of any kind
25 to Iron
175 to Bronze
500 to Silver
2500 to Gold
5000 to Onyx
1000 to Max

Backup: Earn an assist
50 to Iron
250 to Bronze
750 to Silver
1500 to Gold
3000 to Onyx
8000 to Max

Vehicular: Kill an enemy with a Vehicle
200 to Iron
500 to Bronze
800 to Silver
3200 to Gold
6400 to Onyx
14000 to Max

Grounded: Destroy an enemy occupied vehicle
50 to Iron
200 to Bronze
400 to Silver
2500 to Gold
6000 to Onyx
12000 to Max

Perfectionist: Complete a round without dying
50 to Iron
250 to Bronze
500 to Silver
2000 to Gold
5000 to Onyx
8000 to Max

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