person 1: hey wanna play halo 3?  person 2: nah i'm tired of being killed by 5 year olds, so ima play call of duty 4
one of the great 360 games
"person 1: hey wanna play halo 3?  person 2: nah i'm tired of being killed by 5 year olds, so ima play call of duty 4" What is the definition of "call of duty 4"?