Guys, you need to start thinking outside the box for the whole Outcast vs Corsair conflict. The Outcasts and Corsairs aren't the "be all end all" unlawful factions in Sirius, there's plenty of forces in the core worlds that can handle themselves, and plenty of other stuff that happens between unlawfuls without Hispanian involvement.
Hessians and Outcasts have no contact with each other. It's doubtful they would ever, as getting into bed with a drug cartel generally means you never leave (look at the Lane Hackers). For a faction as big as the Hessians this would have far too great consequences, which is why I always said that alliance was stupid from the beginning, and why I advocated getting rid of the "anti Corsair alliance" that polarised literally half of Sirius in a huge super alliance that ended up choking the lore of at least a couple of factions.
The Corsairs are a bit like the Orks of Sirius. They are numerous, they have no shortage of new fighters. The reason why they haven't yet become involved in a full scale war with any of the Houses is because of a single thing: a lack of strict organisation that is a direct result of their food supply problems. Corsair groups are mostly autonomous from each other, they end up being spread across the majority of the south of Sirius because of this. This is why the Hessians offer resistance, because for their smaller numbers if put against the total population of the Corsairs, they still outnumber the Corsairs in the Omega systems by a decent factor. Of course the war remains in a relative stalemate anyway, but you see my point. An individual Corsair would probably be more concerned overall for the well being of his own small group than the entire Corsair empire, unless something drastic was happening like Crete itself being threatened.
Going back to the original point of this thread: the Corsairs in the Sigma systems would be mostly pirate parties. The Outcast groups would either be smugglers or pirates. They would probably roughly be on equal terms in the Sigma systems. The main fight would be for the lucrative trade lane that Sigma-13 is supposed to be. The other one would be the aforementioned Atka Cardamine substitute research thing. What I would like especially is making the Sigma pirate problem a bit more pronounced than it is right now. Make the KNF worried about both the Outcast and Corsair build up. The Sigma border worlds should by all means be the Hispanian playground as opposed to deep, hidden away Omicron systems.