[Agentlien]

I wanted to post this as well. Whenever I think of game A.I. the two games that always come to mind are Half-Life 2 and F.E.A.R.

[Aardwolf]

Half-Life 1 as well, it was pretty novel how soldiers would take cover behind crates and then throw grenades

[robodale]

I remember that as well, and made for a very exciting experience.