Couldn't say. But all the ships I'm seeing are small. You don't drive a subcompact to a salvage yard if you want to pick something up - you bring the biggest vehicle you can fit in the front gates. If they could get away with bringing big freighters down to haul away whatever they find that's useful, they would. So they're evading something, and that's why they've got a lot of little, quick gunships down here and nothing else.