My wife and I recently finished watching Arrow — and a lot of the way through I kept thinking it would be a good model for a BitD game with a vigilante crew. I’d probably lift the hit-list setup directly. Give the players a page full of names with no other information and go from there.
The main episode format, especially earlier in the series, is not the standard superhero “X is happening, let’s go and stop it” but “X is vulnerable, let’s go get them”. Which fits the scores framework rather better.
What are some other vigilante-ish stories that follow the same kind of structure? A lot of Robin Hood tales do, to follow the mysterious-archer vein.
You could focus on breaking down the hold and tier of groups, without building up your own.