30-40 missions
Same as PS3 and Xbox 360.
21.
There are 14.
15.
Be more specific, which one?
15.
There are 14 missions, but 2 of them are cut-scenes.
2 Call of Duty titles have been released for the original Xbox. They are Call of Duty: Finest Hour and Call of Duty 2: Big Red One.8 Call of Duty titles have been released for the Xbox 360. They are Call of Duty Classic, Call of Duty 2, Call of Duty 3, Call of Duty 4: Modern Warfare, Call of Duty: World at War, Call of Duty: Modern Warfare 2, Call of Duty: Black Ops and Call of Duty: Modern Warfare 3.(This information is as of 18 September 2012)
About 12-13
18.
there are 14.
18 altogether i think