terrorist hunter.

[Monk]

Wull...in my opinion anyone tasked with hunting terrorist would be backed by some organization that has issues with terrorists (i.e. Outcasts would care little about ridding terrorist whereas Houses would). I can't think of many vigilantes that would do that.

My best guess would be LSF, being one of the most prominent intelligence agencies, would be behind such endeavors. However, if you are going after the vigilante route...a freelancer or Merc set up would probably be best if you're looking for some sort of ignorance from Houses and pirate factions.

EDIT: As for terrorists in battleships I think support from a faction capable of running a battleship or hiring a BH or 2 would be necessary.