It would be nice, if in Pve the AI would adjust their army to the players army.
Atm AI brings in +2 lvl (suicide) and +1 / +2 lvl (insane) from the highest player unit.
Suggestion:
Let the AI bring in still +2 lvl units, but under consideration what the individual units from the player are.
E.g.:
Player: 5x lvl 10 LI, 2x lvl 8 HI, 1x lvl 6 Cav
AI: 5x lvl 12 "something", 2x lvl 10 "something", 1x lvl 8 "something" + difficulty add-on (Mercs for e.g.).
Just an idea...