I just have an issue with Modern Warfare 2 being on any top 10 list. While MW2 may be a fun game, it is no where close to being a better game than the original Modern Warfare. MW2 from day 1 had broken multiplayer and a single player that would be a insult to call it a campaign. The Original MW is the superior title in the franchise, both in it's single player and it's multiplayer. CoD never used Halo's "formula", Halo is much more like a slower Quake while CoD is a more arcade shooter. Also, Black Ops is a separate beast from MW, the flow of the game is completely different and it required more finesse to actually be decent than in MW2.