And for the gang alliances it would be a meet between 2 or maximum 4 gangs that want to make business, if the gangsters like each others they become allies, but if the meet goes wrong, there should be a shootout or a brawl.
This would be for every gang, even Ballas and Groves could be allies, Rifas and Aztecas, Triads and DNB
This could be used to reduce the beef between two gangs
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