Tom Clancy's Ghost Recon Advanced Warfighter 2 is an excellent shooter that tasks you with handling a Mexican uprising.
The gameplay revolves around 2 things. These are the Cross-Com, and the cover system. Both work very well. The cross-com lets you effectively give orders to troops, UAV's, and armored vehicles, all on the fly. There is also a cool feature that lets you take a view from your supports eyes, allowing you too see all aspects of the battlefield. The cover system also works very well, just go up to a wall, car, railing, anything, and the character will stick to it. This allows you to fight more safely, and you wouldn't be able to beat the campaign if you refuse to take cover. All of the features of the game work very well, and don't come off feeling like gimmicks.
Everything about the game feels very solid. The gunplay is intense, the explosions are LOUD and satisfying, and giving orders seems realistic. Not to mention, the game has gorgeous graphics. You'll find yourself huddling for cove rbeside a burnt out car, getting shot at, but looking at the dusty landscapes and amazing skies. Yeah, the game is that beautiful. You won't notice it much, but the camera even shakes when the character gets up to top speed. It's little things like this that pull you into the game that much more.
Overall, GRAW 2 is my favourite 3rd person shooter ever created. Everything about the game is polished, and it is a load of fun. If you have not yet, go pick up this game today. You won't regret it!