PC version of Ghost Recon Advanced Warfighter is underated, for it's type.

User Rating: 8 | Tom Clancy's Ghost Recon Advanced Warfighter PC
I believe that gamespot has been a little brutal for scoring this game just for it's steep requirements, like I mean look at Crysis... the graphics are nice and the engine is real cool but it gets fairly boring after playing it for a while. Ghost Recon Advanced Warfighter has pretty good gameplay for a tactical shooter and it accompolishes that very well. The story is alright not the best I've ever seen but it will work, the sound of the weapons is very convincing makes you feel you are actually there and fighting. The Envrioment of the game is amazing with breathtaking insertions of Mexico city you feel like your there. I agree with the difficulty of this game, but I'll let you in on a secret, you can reload at checkpoints and you and your team will recover to full health.

In conclusion, if you are looking for a realistic tactical shooter, I really suggest you give this a shot, I believe it's "one" of the best tactical shooters for PC.