I'm looking forward to being able to play GTA V on PC soon. I've played a bit of it on my brother's X-Box, but I haven't had the opportunity to play for more than a few hours.
Lately I've been playing some Arma: Cold War Assault (a.k.a. Operation Flashpoint: Cold War Crisis)
It's a fairly in depth military simulator, so gameplay is nothing like Call of Duty or any similar titles. Most firefights are spent lying prone, slowly crawling from one piece of cover to the next, and shooting at enemies who are so far away you can barely see them. Typically you will die if you are hit, unless you only get hit in the limbs. It was actually the basis for a piece of military training software called
VBS1.
Graphically, it reminds me of the areas south of San Fierro in GTA:SA. Gameplay wise, it can be very difficult, as you might expect. If you decide to play it, be prepared to die a lot.
Scanning the surrounding area after reports of an enemy patrol.
Looking back at paratroopers after failing to hold the town.
Assaulting a village.
Using binoculars to see if there are any more enemy soldiers before advancing.