Read pages 34 through 37 of the newest gameinformer. It goes into detail about how activision railed former IW developers Jason West, and Vince Zampella. After all the hard work they put into mw1 and mw2, they were then fired for no real reason, not given their money due, and then Activision tried to counter sue them for what Mw3 did not produce in sales because they were no longer making modern warfare games.
Since the lawsuit has hopefully settled I hope Jason and Vance finally get to make something with their new company Respawn, and to Activision you suck, I hope your company fails in a big way. I feel sorry for Treyarch and hope they have people watching their backs. It would be a shame to see the same thing happen to you. You guys at Treyarch should take the first chance you get to get away from the **** at Activision.