The zombies alone is the reason for my rating. In my opinion its the best of the call of duty zombies already and there are maps to come. The map is huge, lots of different things to do, an option to pause even while online (host only) and an option to exfil the site at different levels so you aren't forced to lose at zombies when you're done playing. The campaign so far is amazing I have yet to play much due to being addicted to the zombies. Multi-player is a work in progress as always as long as the new maps are solid and they fix some of the bugs it'll be a good Multi-player so far modern warfare was better in that area. And warzone is still warzone. I love that its merging