Call of duty World At War or Call of duty 4?

I own and play both on a religious basis... If I could only play one of these games for the rest of my life it would be Modern Warfare... WaW is great, online play is awesome... I like the weapons on Modern Warfare better... The only thing WaW has over Modern Warfare is Co-Op through the levels... So when of your buddies comes over and he's just learning the game... you both can have fun in the Co-Op mode... The downside to getting Modern Warfare is that it's been out for a while. Therefore you will get spanked when you go and play online... I'd recommend playing either of the games through hardened level before going online... Great tip... Use the Tactical Button Configuration... Final thought... Get both of the games...

Call of duty 4, World at wars multi player does not work as well as COD4, Also tanks are a bad addition.