Marabunta Grande

Mara Bunta are a El Savadorian gang in GTA 5 who are in drug trafficking. According to Weazel news they are at war with an Mexican gang called the Aztecas over the drug trade and drug trafficking. Weazel news reported that there was a shootout between the gang in the Grand Senora Desert. There is a possibility that they're based off the real MS 13 gang also known as Mara Salvatrucha.