Air should be made more focussed. ESF should be primarily an air to air unit. Liberarator should be primarily an anti vehicle unit (a flying tank if you will). Valk should be an anti infantry gunship/fast infantry transport. Gal should be a large infantry transport, with point defense/covering fire weapons The problem with ESFs is, that they are just too general purpose. They can farm infantry with impunity - and in the hands of a good pilot, can also hold their own against vehicles and other aircraft because they give up little capability when they fit AI weapons.