Ghost Recon Advanced Warfighter is an awsome game.You will be sucked into it in the first 20min of gameplay.
This game has two difficulty settings, normal and hard. Normal allows for you to take 3-5 shots before going down where as hard mode you'll be lucky to survive 2 shots.
The games story takes place in Mexico City over the course of two days in 2014. Rebels in Mexico City are trying to get their hands on Guardrail lX after the plane that was carrying it was shot down. That's when the Ghosts are sent in to retrieve it. The main Rebel leader in Colonel Carlos Ontiveros who will be trying to keep "The Pakage"(Guardrail lX) away from the ghosts.
There is also a fairly big variety of weapons and vehicals to keep you occupied. The multiplayer mode is great. There are co-op missions so you can play with your friends, capture the flag, helicopter hunt, and more.
Altogether this game has good graphics, a good storyline, and is great at creating an environment which ranges in difficulty as the levels go on. I would really recomend picking up this game. If you haven't liked the previous ones this one may surprise you, in a good way.