And to go along with that, I think FG knows both groups. Gareth seems to be the Terminus priest because I think he’s holding a Bible in his hand over those about to be beheaded - reading them their last rites. And so maybe he was connected to FG in the before - maybe Gareth tried to join forces…
maybe fg has a cross car of his own, which initially makes them question him about it?
also, yeah, with that cop lady being like ‘you’re part of a system here’, that really makes a lot of sense with your whole barter theory. that’s probably why she’s so hard on beth and won’t let her leave.