Well we have very few Aliens right now, so we would need to justify the lack of them in the RPG. I'm thinking it would have to be somewhere that doesn't have a hive, maybe not even a Queen anywhere nearby. Most credibly the Aliens would be escaping from some testing tubes or something. Also, in the last RPGs since the new clans appeared, i think there was too much collaborating between clans of the same species, so the story should be set that we are all enemies. It was like "Preds, you want to do that, Humans, you want to do that, Aliens, you want to do that." I liked it more when it was like "This clan wants this, this clan that, this clan has to do that etc." I know i'm talking here about really dead clans, but i'm thinking it would give people a better sense of what a clan should mean.
I don't know if i remember this right, but you need a leader or subleader to confirm that the clan is joining for it to join, right? So you should probably see which clan is able to join and write a story for those clans to play out and everyone else can join solo, or so, right? Ah, fuck it, this is ridiculous, we have too few people left.