Splinter Cell 3: Chaos Theory

Cool preview of SP3 over at GameSpot. Here's a highlight:

Perhaps the most impressive aspect of the demo is the artificial intelligence. For example, while skulking around early in the level, we were detected by a guard who immediately opened fire on us. While we pulled Sam back around the corner to unsling his rifle, the guard kept firing. When we swung around the corner to open fire, the guard pulled back around his corner and disappeared from view. He then popped out and fired a burst in our direction. We then steadied our rifle on the spot where the guard's head would appear should he poke it out a second time to fire, but instead of doing that, he unexpectedly darted into the room faster than we could react. Being a locker room, the room had several rows of lockers, and the guard disappeared down the middle row only to reappear in the farthest row, not quite where we expected him to be. After firing another burst, he ran out of the room and back to where he had been shooting from us originally, and it was only from a lucky burst when he popped out again that we finally managed to nail him.