If you like Zombies, get BO. Though this argument is repetitive. Like BO, MW2 has horrible spawn points on some maps. Like MW2, in BO there is some perks that work the same as in MW2. I hate BO because of online play but I love it because you don't have to level up to get certain perks or weapons. I hate MW2 because of leveling up, I have to wait for such and such. Do you prefer Modern weaponry over Vietname-Cold War weaponry? Both have similar weapons and attachments, though they have two map packs. So you might has wait for a GOTY versions. I play alot of both because of the different game types. MW2 has third person which reminds me of Socom but I wish there were hostage extractions than just killing each other in bad spawn points. BO has Zombies, which in my mind can be its own game.