Vigilante
From Starsonata Wiki
"You dare defile the peace?!"
Vigilante is an uber AI who roams through warp-3, taking the law into his own hands at the slightest provocation with his many multi-fired Vigilante Catapults. His clover is a larger version of the warden player ship, but is not invincible.
He is primarily killed for the chance to drop a Vigilante Catapult BP or the commodity needed to build one.