This is something the AI in Tribes of the East (at least in 3.1) simply cannot do.

It's a shame, because these overpowered units (slow-dispel) immediately turn an army into a pile of meat, and ranged units are completely taken out of the fight.

Added 4 minutes later
Regarding the 4th map... Or ban vampirism.

Roughly speaking, I put 200 Adepts into a battle – they don't knock out the enemy's ranged unit pack on the first strike, then there's a dispel. The enemy goes into melee. And in melee, whatever damage he deals, I immediately regenerate in response + the hero's special ability silences him + mass slow, so these 200 Adepts defeat an army that includes 50 Angels, 100 Knights, and 600 Archers, etc., with a loss of only 3 bodyguard units and without any effort.