The map could be based on many cities/areas in the united states, stretching from florida to california (Houston, Phoenix, Los Angeles, etc.).
We could have an interesting cast of characters. Hispanics are more expressive and more unique than blacks. There could be very masculine tough guys, and also weak and funny characters like Pedro from Napoleon Dynamite.
The wide array of locations means there is a good amount of options to choose from for chase scenes, gunfights, etc.
Also conflicts between black and white gangs may be of interest.
we just had one set in san andreas