I think the Flaunt stuff is maybe a one-shot problem too: IIRC there’s a bunch of stuff in the book about getting on the same page as far as what your predators can and can’t do, which would I suspect help a lot with the common-law problem Paul points to (not eliminate it, but help: if everybody’s like “oh, sure, you can turn into whatever kind of animal but also predators always know predators,” you don’t need to settle “can I turn into a rat and follow him home?”)

Honestly it seems like a strange game to try and do a prebuilt one-shot for, and even stranger to try and slot custom PCs into that r-map. High degree of difficulty there.