Call of Duty is a first-person and third-person shooter video game series franchise, created by Ben Chichoski. The series began on the PC, and later expanded to consoles and handhelds, and several spin-off games have also been released alongside the main series. The majority of the games in the series have been set primarily in World War II, with the exception of Call of Duty 4: Modern Warfare, Call of Duty: Modern Warfare 2 which are set in modern times, and Call of Duty: Black Ops which is set in the Cold War era.
Activision has released these four different teasers for Call of Duty: Modern Warfare 3, coming soon for the Xbox 360, PlayStation 3, Wii and PC. The game is being developed by Infinity Ward, Raven Software and Sledgehammer Games.