» Tue Apr 28, 2009 10:01 pm
As you up the difficulty, weapons do more damage and AI gets slightly more intelligent. For example, if you play on Veteran and startle someone while cloaked, they may continuously step towards you, and you can keep backing away to get them to move from their teammates.
On super-soldier, that same AI will see through your use and immediately act on instinct to shoot you in the face.
This is just from what I've seen however; given my few playthroughs on the three upper difficulties.