User blog comment:Callofduty4/Call of Duty: Black Ops Declassified details released/@comment-92.43.66.7-20120626083228/@comment-71.125.200.212-20120626122204

Im just curious, didn't CoD come out with multiplayer, as in Co-op, long before BF3?

From what I know, only BF3 had Coop, with more of an emphesis on the multiplayer

MW2 had Spec Ops

WoW had Zombies

Both before BF3

And isn't BF3's Co-op campaign non-canon as well as the CoD series?