Gone Berserk (Guristas) (Level 3)

From Battleclinic.com

We have reports of Guristas Pirate ships wrecking havoc in {System Name}! Our convoys have been attacked, as well as some outlying outposts. They seem to be intent on causing as much damage as possible. I'd like you to take care of them, pronto! And be aware that they may not all be gathered together when you arrive and if so you will be able to pick them off as they warp in to the rendezvous point.