[Hugh Manatee]

I remember a theory put forward on another forum, an escort with maxed out evasion stats, through ecm, those armors and training, and a drone launcher could wack a battle or base ship. It uses the Ramming warhead and the biggest drone yuo got. Assuming the ship isn't religious it should be able to pull up close, launch and kaboom. I haven't test bedded it yet, but I think it would work. I don't know the exact cost ratio of the drone loaded escort/Baseship.

EDIT: I forgot, you need a few PD Cruisers to wack any misssiles launched, butthose get built anyway.