Quote Originally Posted by Rom
Generally each difficulty level will add morale to enemy troops which makes them fight longer before running. The ai will also add a few more calculations above easy so that it's tactics are a bit better. (i.e. on easy the enemy will not ambush). The normal setting is not overpowering for a beguinner.
I thougth the S:TW difficulty bonuses were identical to M:TW: at easy you get a morale bonus; at expert the A.I. gets one. Also the A.I. gets more clever at higher difficulty (and receives a slight stat bonus as well).