The ISO is one of the free DLC weapons available in Call of Duty Modern Warfare. It is a submachine gun with moderate rate of fire and accuracy. Because of the ISO’s tiny magazine, its important to choose your shots and battle within close range. Class Submachine Gun Unlocked Get 5 kills using an SMG with a holo optic in 7 different matches. Ammo 20/40 Fire Mode Full Auto / Semi Auto Attachments Lv Slot Attachment Pros Cons 1 None […]