The Legio AI demon ships are truly hellish to fight. I think they punch one or two tiers above the ship size they actually are and with their unique armor, supercharged flux stats, and often uncatchable mobility, killing one takes a whole fleet. My worse nightmare is the hound which has regenerating armor on par with destroyers, a sacrificial front armor piece, damper fields, and a charge that reduces damage taken. Impossible to catch and just as impossible to kill
. I have trouble with just the frigate, I can't imagine fighting a whole fleet of varying sizes! Its a shame you can't really use them yourself.