Soloed with a warrior
30/0/0/10/30
Full zerkers, ruby orbs (scholar would be better)
axe/mace, rifle
fgj, Bull’s charge, bolas, signet of rage
Behind the mortars there’s a rock that breaks aggro when you’re near it.
Basic strategy is kill the east and north plunderer’s with melee set and use the rifle for the west plunderer. Make sure to drop aggro behind the rock after each kill.