Cholos
In Grand Theft Auto: Vice City Stories, the Cholos are the dominant gang in the Little Havana district of Vice City.
They are in conflict on various fronts - Phil Cassidy is fighting them for gun running dominance, while Marty Jay Williams and the Trailer Park Mafia is fighting them for dominance of nearly every other criminal activity.
Their control over Little Havana begins to be threatened in 1984, when the Cubans arrive on the scene, sparking a deadly turf war for complete control of the neighborhood. They even attempt to kill Alberto Robina, the father of Umberto Robina (the Cubans' Leader). In revenge, Robina decides to launch an all-out attack on the Cholos that results in the Cholos' defeat. The Cholos are completely wiped out (although they are still seen walking the streets in Little Haiti) by the time of Grand Theft Auto: Vice City after Cubans, with the help of Victor Vance, win the turf war for Little Havana.
The term "Cholo" in Spanish means "Mutt", but is also Chicano slang for a "homeboy" or "gangster".