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Matt Gonzalez is a character in the GTA story and makes small appearances throughout the GTA5 chapter.
Matt's combat history is unknown and can possibly be ex-military or mob related.
Matt works as a mercenary in the Los Santos area and performs mercenary hits with a merryweather team for anyone who pays $7000 in-game.
Matt is also known to perform hits on his own and legend says he has taken out a jet pilot with one sniper round.