Call of Duty 4: Modern Warfare is a game developed by Infinity Ward, and published by Activision. The first person shooter is the 8th installment in the Call Of Duty video game series and the first not to be set in World War II. The game plays from the persepective of Paul Jackson, a member of the United States Marine Corps 1st Force Recon and "Soap" MacTavish, a member of the British 22 SAS Regiment, although a number of other missions allow you to play as other soldiers.