Following the events of Papi Don't Screech, Umberto is angry because of the Cholo's assassination attempt. In the mission Havana Good Time, Umberto plans to rob the Cholo's gun warehouse.
Vic has to fight his way into the warehouse and defend the two vans packing the heat. But after they take the guns and go, Vic plants bombs in the Cholo's pinata. This pinata bomb kills many Cholos. Because of this Little Haiti becomes a gang-free community for a while.
GTA Vice City
Sometime between 1984 and 1986, the Haitian Gang takes over Little Haiti again. This eventually leads to another gang war. Tommy Vercetti frames the Cubans for killing a Haitian Gang Lord, which sparks another turf war in both gangs' respective communites.