downloads4free: call of duty 4 serial key

Call of Duty (first released October 29, 2003)is a first-person shooter video game series set in World War II ( except of Call of Duty 4 which is set in modern times). The series started for the PC, but due to its popularity soon expanded to consoles and handhelds such as playstation 3, ngage etc. The series includes offshoot games that follow the same gameplay as the main series.