I just got the ship on my last package, rank 23 I think. I haven't even seen another person with it so I know that the faction ships are quite rare. I got a fairly good auto rifle from them, but nothing beats the Deviant Gravity machine gun that I got. It has bonus accuracy while crouching and surplus. Add in Field Scout and this thing is amazing. 60 in the magazine and 90 ammo on pick up. I also have revenant and bittersteel. I just moved on to New Monarchy but Dead Orbit will always be the best faction. I really wish factions were more than a vendor in this game.