[@Queentze] [@The Angry Goat] Don't know if you guys would be interested in this. The Gang isn't fleshed out or anything but there is a second-in-command, Boss, and essentially enforcer (Nayden). Perhaps you guys could be working for them in the interests of political assassination or rival gang extermination. 

Either way, if you're looking for somewhere to start why not start with The Old Nueva Gang? It won't be around for long but its a way for some of the characters to know/recognize one another.