Based upon my impressions Im pleasantly surprised about multiplayer, still like BO3 better, but this is a close second (when the servers actually work). The first day playing was nearly impossible to get into MP, however each day it has been getting better and better.
Even though WAR mode is a ripoff of Operations in BF, I still find it fun, a lot less sweaty then some of the other modes and the maps give you an opportunity to snipe and use LMGs while still being able to do well. Biggest complaint is no killstreaks, I understand why, but it would be nice to be rewarded for long killstreaks.
Overall, I am disappointed by the other game modes, there is no mode besides WAR where you can pile on a ton of kills each match. TDM at 75 Score is so dumb, and the DOM switching sides ruins the flow, I dont want MLG friendly modes, it makes it sweaty.
Also, disappointed by both the strength of the killstreaks and how long it takes to get them, pretty much Ordinance basic training is required to actually get more than a UAV. I think the killstreaks should all be dropped by 50-100 points. Kill confirmed is by far the best normal mode on this game because it allows for a larger amount of kills and the ability to actually get enough points for bigger streaks.
All in all Ive already sunk 20 hours in and havent touched zombies or single player. I will admit I started off not liking it, but after you learn the maps and the flow it plays very well.
P.S. MP40 & STG for life.