I'm at the part towards the end where I need to direct the air strikes for the airman. After a minute or so of playing, my game will crash to my desktop, sometimes completely freezing my PC.

This also happened at one area in the game previously, which I guess I just got lucky, because it stopped.

This new...crash area won't stop, and I can't progress in the game, which svcks, because I'm so close to the end.

It's not my computer, or hardware.

I'm running an i7 960, and two GTX 580s. My temperatures are fine as well. It's the game.

Why does it do this, and how can I fix it?
I've tried rebooting, and reinstalling the game, all to no avail.

It's extremely frustrating, some help would be nice.

Any help?