I'm playing a Battlebabe right now. He was brought into the hold in the first session as a merc running from an outbreak of some kind of plague in his last hold. By the end of just the first session, he ended up haggling with the hardholder over the specifics of his lieutenant-ship (get a gang and leadership). It was difficult to reconcile my BBs longing for freedom and mobility with the new ties, but ultimately I found that his fiction demanded that he try out this new life.

My MC played to the battlebabe's protagonism (?) with NPCs with strong personalities but without immediately obvious driving motivations of their own (beyond loyalty to various leaders). This allowed the battlebabe to provide an inciting force in the world and remain interesting.