easily has the best maps. the soundtrack is insanely iconic. the weapon poll (while mostly weak) has some hardcore gems like the AUG, cammando, galil, and the GOATED M&S's.
this was when cod zombies had edge yet wasn't too super serious about it. it was a perfect blend of action horror mixed with a bit of comedy. this game was so punk asf there wasn't any game i feel that was as cool as it before its time (well aside from cod waw zombies).