Story:
Alright, lets get this of first. The story mode is very short. You can finish it off on hard in about 8 or 9 hours. Took me a weekend, right after christmas. But, it is very fun, and I enjoyed it. It has some very intense moments, for example...
**SPOILER**
You play as two different players, switching off. One of them is in iraq, when a nuclear bomb goes off in a cutscene. it puts you back in the game crawling around, looking at the aftermath of the event. the screen is blinking red, and after about 30 sec, you close your eyes and die. intense.

Graphics:
The graphics in this game are very realistic. From the guns, to the character models, it looks pretty damn real. it doesn't quite have the shimmer to tht of say, crysis, but it is still a very good looking game

Sound:
The sound is very real in this game. From the realistic gun sounds, to the accents of the terrorists that you play against. very well done by IW

Replay Value:
The raplay value on this game is pretty good, but nothing like guitar hero or other games. but i have played the story mode twice, and im currently working on the hardest mode, veteran. nothing amazing though.

Multiplayer:
Now this is where this game shines. the online multiplayer is genius, and the class system really shines. you lvl up from 1 to 55, by killing people and doing well in games. the farther you lvl up, you unlock game modes, guns, and "perks", such as faster running, holding you breath longer, and more damage, etc. the several game types make it very fun, and very replayable. This is the highlight of the game.

Final Opinion:
This game is a verry good game, complete with a fun story mode, and an amazing online multiplayer. But if you are without an internet connection, you might want to get this game used, or rent it b4 you buy it.