Man, did they ever get this right!
The story is pretty standard in this genre. Bad guys trying to blow stuff up to get what they want. Really, I hadn't though of that! But i's good nonetheless.
Graphics are really good, makes you want to look around for a while. That's difficult to do when bullets are flying past your head. Or worse. Graphically, this is one of the best on the system so far.
Sound is what you've come to expect. It is really immersive and sucks you in completely. That's on 5.1 anyway. I can't say if you have less than that. Mulitplayer is where this shines. There are so many varieties of game types and they did such a good job, it's unbelievable. Many games do one or the other well, but Ubisoft got both the single and mulitplayer. Everyone has fun and I really like the way that you level up in multiplayer. I unlocks bigger and better stuff, and it really makes you want to play more.
Achievments are not easy in general. If you check many of the online players, they have around 300. It's not a high achivement game that's for sure.
Another aspect that is really awesome is the fact that you can take a picture with the xbox camera of your face and put that on your multiplayer character. It is so well done that if you actually know the person, then you can easily tell that it's them.
Buy this game! Even if you can't or don't buy many, buy this. One of the best!