Campaign is brilliant! Many controversial things that WILL make you uncomfortable. Great experience playing through the whole campaign that is about 6 hours long.
Multiplayer is a mixed bag. Probably the most in depth unlock system we have ever seen. The amount of unlocks like guns and attachments can keep you playing for hours upon hours. The map design though is one of the worst we have ever seen that supports camping. They have the feel of older cod makes like in cod 4 and WAW but fail to be creative and fun. The time to kill in the game is also way to quick and is probably one of the big reasons why campers with claymores are so prominent.
Lastly the spec ops unfortunately is just a gimmick. I was really excited for this mode for the pure fact that I love coop but it is okay. There needs to be some patches to fix it like if someone leaves or crashes they cant join back, You would have to restart the whole mission which are a handful. They are also ridiculously difficult throwing 3 juggernauts at you at times so it is a necessity to have 4 friends on coms playing perfect or you wont succeed.
That's it, overall a great game but if you can wait, wait for patches to come through to fix the game up and add some new maps that are not awful.