Ok
1st thing, its IW, Infinity Ward, not insomniac.
Im now going to write a summary of the last 3 COD games.
IW - CoD4 : Relatively balenced - Very enjoyable game.
Treyarch - WaW : Still relatively balenced - Some BS points, but still enjoyable.
IW - Mw2 : Complete BS. Evry second on that game someone me or one of the friends im playing with is suffering from UMP Marathon lightwight scrubs. Or OMA Danger close Noobtoobs.
My point here is that Treyarch will probably learn from IW's mistakes, for instance leaving the stock on the SPAS-12 were its SUPPOSED TO BE!!!! xD
Not tryin to be mean, just offering my opinion