Great game. That all there is to say.
User Rating: 10 | Call of Duty 4: Modern Warfare X360
COD4 is currently my favorite game. The campaign is fun (I didn't enjoy the ending so much, and I saw most of it coming), but you really get into the storyline. The graphics are amazing, and there is a lot of great detail. This is the first game that actually brought out multiple emotions out of me, all which made me fully engaged in the game, like a good movie would do. It's an amazing game and it deserves a 10 in my opinion.
As for multiplayer... It is an extremely fun game to play with some friends. I actually enjoy doing so more than I do with Halo. I happen to get more into it, and don't get as discouraged. But, I only seem to play well with FPS =p
There are too many great things to say about this game, but I don't want to spoil anything for people who haven't had the chance to play it yet. It's a must play game =)