Firstly, I'd just like to mention that unlike a lot of reviews on here, I have given this game every chance I could. I have 1000g'd it (got every achievement) so I've completed the campaign on veteran, done the entirety of Spec Ops, gone through all of survival mode and done the first prestige online and honestly, I don't know how the hell I managed to play this utterly awful game for so long.
It's just a terrible game.
This, I didn't mind. I've always enjoyed the campaigns on COD and the extra challenge on veteran as well but this time, they seem to have lowered the difficulty of it, it only took me 7hrs to go through instead of the normal 12 - 15hrs. Even as much as I enjoyed finished the Modern Warfare story, this by no means redeems the game even the slightest little bit.
Simply put, boring. Once you've done a mission that's it. It's completed. There's absolutely nothing to make you want to go back and do it again.
A poorly realized "Horde" mode. Honestly, leave this kind of thing to epic studio's who actually know what there doing.
Buy MW2. It looks the same, plays the same, the spawns are better and the maps are much better (and I didn't even like mw2 personally). The maps online are just horrible, the return of quick scooping is a complete drag, weapon balancing is pathetic and there's campers galore.
I wish that they'd of spent an extra year making this game instead of just rushing it for that "yearly" release schedule they've got going. As a result, were left with a poorly realized and badly finished game. Please, don't waste your money on this.