Legion des Damnes, an (unofficial)Gallic Brigand faction
1. expanding into Sirius, making deals with the factions there. Then theres resisting the royalists, cos they're crazy. oh, and the comfort of a minefield keeping you safe from...well, whatever sirian things your afraid of. the nomads, for example. I aint ever seen one in Gallia.
2. the Legion are mostly ex-navy, betrayed or betrayers, depending on what you want to believe. you can RP one of the surviving Legionnaires from when they were navy, someone just joining the brigands, or a long time brigand wanting to join the gang.
3. We have a pvp whore or two who'd probably love to take you out for a spin, teach you the ropes. plus, with a bomber patrol every fifteen seconds, especially if your in a transport, you'll be flying great in no-time. And since theres always the option of running from the police/navy/sun-going-supernova, PvP isnt completely necessary. Heck, you could fly so badly you shoot your own guys for all i care, just as long as you do it with style
if you want something a tiny bit more unique than that, since its kinda close to cops and robbers, theres the LaBrise de Mer Union Corse family. They operate on both sides of the law, striking deals with anyone and everyone.
And you can have cops v. terrorists (maquis) or cops versus revolutionaries (Council/Republique de Gaule Libre). or cops v. Sirians, since the Royalists really dont like foreigners.