I think the americans campaign would be about them doing to russia what they did to America. It is referanced to at the end of the mission whiskey hotel and the other part could be Soap, price and mabye the survivors of TF141 and Makarov will obviously have somthing to do with it.
*SPOILER* *SPOILER* *SPOILER* Yeah, not to mention Makarovs dead... In the Airplane Graveyard you hear a discussion which says he'll die before the week, he does. In return of this (obvious) information, and after Price mentions the saying "My enemies enemy is my friend". Makarov said it goes both ways, and sent Price the coordinates of Shephards secret Base. That's where you kill Shephard after some Black Ops down and a boat ride.
