Modern Warfare 3 is a first-person shooter video game developed by Infinity Ward and Sledgehammer Games, released in November 2011. It is the third installment in the Call of Duty: Modern Warfare series and continues the story of the global conflict between the United States and a Russian ultranationalist faction. Players engage in both single-player and multiplayer modes, featuring various weapons, maps, and game modes. The game introduces new gameplay mechanics, including the ability to use killstreak rewards and a revamped multiplayer experience. It also features a cooperative mode called Spec Ops, where players can complete missions together. The graphics and sound design enhance the immersive experience, making it a popular title among gamers.