Last year Call of Duty 4 took over the genre of first-person shooters on next-gen systems. Infinity Ward produced a game that was in the running (if not the #1 selection) for Game of the Year across the industry, driving forward with not only a cinematic single player offering that brought the series to new heights, but also unparalleled multiplayer in the form of the level-based challenge/class system. First-person shooter fans knew a change was in the air, as the game quickly raised the bar in nearly every respect. On Wii, COD4 didn't make an appearance, but now that Treyarch - the team r...