I think that was a reference to it being knoxies favorite thing ever. Well, if or when I purchase this, yea, single player first. Its a good way to get used to any new weapons and features introduced. Also, the campaing in CoD4, while short, was very awesome, for things like the sniper mission, the AC130 mission, etc… And since I hated the WaW campaign, I'm really hoping the IW outdid themselves again on this one. What I really want to see though is more on the Spec Ops mode.