Call of Duty: Modern Warfare 3 is First-person Shooter rooted in a fictional, but ultra realistic near-future conflict of mostly American forces with those of the Russian Federation around the globe. The third installment in the Modern Warfare branch of the Call of Duty franchise, Modern Warfare 3 features a heavy focus on multiplayer gameplay which includes innovative new functionality that encourages multiple gameplay combat strategies, a new 2-player co-op option, new play modes, weapons, and more. The game also includes a gripping single player campaign that picks up where Call of Duty: Modern Warfare 2 left off, and game integration with the Call of Duty: Elite online service.

Call of Duty: Modern Warfare 3 is a direct sequel to the previous game in the series, Call of Duty: Modern Warfare 2. In the game's single player campaign Russian Ultra-nationalist Vladimir Makarov continues his manipulation of Russian Federation forces in their invasion of the United States and Europe. In their way stands characters like Task Force 141 Captain John "Soap" MacTavish and former SAS Captain John Price, as well as new playable characters from Delta Force and the British SAS. Engage enemy forces in New York, Paris, Berlin, and other attack sites across the globe. The world stands on the brink, and Makarov is intent on bringing civilization to its knees. In this darkest hour, are you willing to do what is necessary?