Call of Duty: Modern Warfare 2, released in 2009 for Xbox One and other platforms, is a first-person shooter video game developed by Infinity Ward and published by Activision. It's the sixth installment in the Call of Duty series and a direct sequel to Call of Duty 4: Modern Warfare. The game features a single-player campaign with a gripping storyline, as well as various multiplayer modes that have contributed to its widespread popularity and critical acclaim.