The trick is that they're a super shuttle who find it's strength through crew and aggression. There's a lot of great value Scum crew out there, and stacking a couple together (which is rare at the moment; everyone else has only one slot each) can result in some truly horrifying combos.
But you need to set them up to be loaded with firepower - if the enemy can afford to leave you till last, you'll almost certainly die once they're in behind you. So spec them carefully and use their 12hp to buy you time as you dish out pain with them - and threaten to dish out even more of they try to leave you till last.
But don't count on them to be your finisher, no matter how much you invest.
Edited by Reiver