I'll get to the bottom line, and since I love to rank things...
FPS Military Games: MW> MW2> B3*> BO2> Any of the other NEW platform COD games.
*If I was a boss at vehicles in B3 I could probably rank B3 #1, but I just couldn't get them down so I wouldn't know if it was better unless I mastered the vehices then I'd have to think B3 is the best war FPS ever. That being said BO2 is a very good game and being ranked #4 IMO is a job well done.
CAMPAIGN: I only got about 3/4 thru but is my favorite of the series. It's different, it makes sense, it plays like a dark movie, it doesn't have those long bs intros into each level that you can't bypass that all the COD's have had. Only negative was the same jarring cut scene they'd show over and over as your plane lands as you complete each mission so lame why didn't they cut that ? Other than that, a fantastic campaign.
ZOMBIES: They look great, but I'm just not a Zombie guy cuz I need three other buddies that rule at Zombies just never got into it, but I did have a crew I ran with for a couple of games and I finally understood what the fun was all about, but I'm a lone wolf at COD, so if you love Zombies I'm sure you'll love this mode.
MULTIPLAYER: I liked the maps there is a huge variety, the updated graphics make a huge difference if you are a graphics whore like me. You don't have a lot of weapons initially at your disposal tokens and ranking up have to unlock them. Where is my M16 :)? I think the best thing about the game that really stood out to me was the targeting system it just looks fantastic and feels satisfying when you get the kill. I only dominated as usual in the only game mode I'm good at Domination and it felt great and satisfying because when your doing damage it's a blast game, but I think for me and the majority we all stink at the game lets be honest there arent that many GREAT COD players we all kinda stink lol. For example I played 30 games last night and there was only one player that I considered a really good player. The kill streaks lose me they are better and better with each COD release, great if you have them and annoying if you don't cuz they are nearly all deadly, that's why I think hurts the game and what made MW so great, it was balanced. You have 10 items you can select, perks, add ons etc, that's a great add to the game, you don't have to have a secondary and can double up on other items. I did freeze or DISC about 5 out of 30 games that stunk but that will only improve and I'm not going to kill a review like many do because of opening day issues; it's COD it will get fixed.
OVERALL & CONCLUSION: A well made game, a nice package, the graphics are a big upgrade, some of the maps look much better than the others, like the LA map looked fantastic I thought. A familiar COD other than the much better campaign, the menus are excellent, and I love the IDEA of Trent Reznor doing the music score. However, he should have given us some classic NIN songs we could pull from as well and we should be able to edit the rotation of them. The same menu composition gets old fast. Remember that simple but perfect MW menu title sound that was perfect? It called to you, "please play me." I'd give this game an 8/10, but for the package it offers I'll give it a 9GN/10.