I'm imagining 10K Bullets to be something like Leverage- heists etc. more than The Godfather or GTA. Is that the idea?
Straight up, Moebius, just about any kind of cops-and-robbers story you dig on can work under Ten Thousand Bullets. Film noir, Leverage
-style redemption-through-bastardy, gangsters, cops of varying degrees of cleanness, high-profile, street-level, there's a place for it. I've had a team of the city's only unquestionably clean cops working their way through the list of the city's most wanted; there's been a pair of hard-boiled private eyes going down no small number of mean streets; even a few fellows carving out their own criminal niches, but for the right reasons.
You'll like it. There's a lot to play with.