A must buy for FPS fans.
Call of Duty 4 is one of the best games I've played this year. I've been a Call of Duty player since the first one was released on the PC. This installment is by far the best one I've played. Both the campaign and Multiplayer are superb.
The campaign is very, very short. It only took me about 5 hours to beat the game on the first day I got it. Although the campaign is short, it's so much fun I just couldn't put it down. You'll find yourself playing for hours on end because you just won't get bored of it. Once you finish it you can always try for a harder difficulty and It really makes you play differently, especially on veteran. Although this does make the game a little more frustrating. The Arcade mode is a spin on the campaign as well that adds some re-playability.
The multiplayer is great as well. I've put over 22 hours into it so far. The ranks make you feel like your accomplishing something in every game while still having a lot of fun. It feels similar to being addicted to an RPG. You just want to keep playing because every second not playing is a second wasted.
If you don't have Xbox live then you're probably better off just renting this one. The single player is good enough to have you coming back but it's just too short to make you want to buy it. On the other hand if you have live it could easily be the best multiplayer you've played all year. Making it a must buy. Regardless this is a game you wont want to pass up if your a fan of shooters.