Cheats within this cheat table - Unlimited Ammo - Unlimited Health - Unlimited Grenades - No Recoil - Rapid Fire About Call of Duty: Modern Warfare 3 is a 2011 first-person shooter video game, developed by Infinity Ward and Sledgehammer Games (Treyarch for the Wii version), with Raven Software having assisted in development and published by Activision. It is the third installment in the Modern Warfare saga, a direct sequel to 2009's Call of Duty: Modern Warfare 2, and the eighth Call of Duty installment. Hidden Content: You must reply before you can see the hidden data contained here.