I went through some PC games' reviews, and I came up with "CRYSIS". It's been rated 9.3, and I think, has won the "Game Critics Award '07".

Short Description:

Crysis presents you as a soldier sent down with your elite unit to investigate some happenings in North Korea. However, once there, things take a turn as members of your unit begin dying off under mysterious circumstances. The situation grows much worse once you discover that you’re not only fighting North Koreans, but something that’s not of this world as well.

Hot Features:

The other feature you will notice that helps Crysis distinguish itself apart from other shooters is the Nanosuit. Your character may be a one-man army, but he wouldn’t get very far were it not for his protective suit, which can allow you to have super-strength or speed, as well as go invisible with a Predator-like cloaking system. You’ll use the Nanosuit’s functions constantly throughout Crysis. Reviews suggest that it's the most gorgeous game ever, boasting many great effects and cinematic details that pull you in like no game before it. The gameplay is also great, with intense action and excellent AI.

System Requirements:

Unfortunately, to see Crysis as it’s meant to be seen, you’ll need a super-high-end PC with all of the latest bells and whistles; otherwise the look will be way scaled down. Still, if you’ve got the machine that can handle it, Crysis is one of the best shooters that you’ll get your hands on this year.

Well, I will surely get a my hand on this one. I've been playing shooting games like Counter Strike, MOHAA and Project IGI. Can't wait to play on this one! You can also suggest any game, which in your books is worth playing.