Skirmish is kind of broke but you can fix it by holding back for about 45mins and letting your opponent build. I played the heck out of skirmish and most of the maps. Best setup by far is Aramon vs Zhon on the Two Castles map. You play Aramon. Give the Zhon about 45min to build and your looking at a long and exhausting war. Very challenging to win this one due to your lack of flying units.
