Hmm. Depends how much you played COD 4 really. Stimulus had crash on, which imo, is probably the best COD map of all time. Also had overgrown which is up there as one of the best all time maps. However the new maps were shit. Resurgence was sort of the other way round. The maps from COD4 weren't that great but the new maps were very good. Carnival is sweet.