The most photo-realistic game that I have ever seen in my life!!!
As it says on the cover of the COD4 case, Call of Duty 4 has won over 40 E3 awards which include: Best of Show (G4), Best Action Game (Game Critics Awards), Best Shooter and Best Graphics (GameSpot & IGN.com).
I swear to you that you will stop shooting just to look at the gorgous landscape of Call of Duty 4. This game has the best graphics I have ever seen. Lighting in this game is state-of-the-art, and the characters look realistic. Just an awesomely cool game!
Playing the game on single-player, you will probably finish it with no problem at all. It has a short single-player, but you will be wanting more and will start over again and beat and repeat.
I recommend this game to all whom enjoy playing shooter games! Do it and do it NOW!