Activision's Call of Duty franchise developed by Infinity Ward and Treyarch
Call of Duty 4: Modern Warfare is the fourth installment of the main series, and was developed by Infinity Ward.
Call of Duty 5: World at War is the fifth installment of the main series, and was developed by Treyarch.
Call of Duty: Modern Warfare 2 is the sixth installment of the main series, and was developed by Infinity Ward.
Infinity Ward is back with the help of Sledgehammer Games to bring us Modern Warfare 3.
Call of Duty: Black Ops is the seventh installment of the main series, and was developed by Treyarch to be released on November 9, 2010.
