User blog comment:Ausir/It takes 500 people to make Call of Duty/@comment-27.32.40.200-20110909092836/@comment-1055346-20110909190330

Engines also take time and activison gives IW and Treyarch time constraints. Theyjust don't have tme to build a brand new one, no matter how many people or money they have. And WAW to BO isn;t a fair comparison, Cod 4 was on the IW 3.0 engine and MW2 was on 4.0, but Waw and BO were on 3.0 modified. Its not a fair comparison