This is the most unpolished CoD I have ever played. I don't recommend anyone to really buy this right now.
As it stands, the Skill Based Match Making is out of control. If you get into a lobby with people you like you can't stay eith them, because it kicks you to find a new game with people around your K/D. Oh and if you play with someone who has a much higher K/D than you. You might as well just lay your controller down. The maps are made for campers and are not balanced.
The Zombies is the best thing about this game and that's saying a lot because I typically hate Zombies.
The Campaign is a bit short but well put together