This is one of the main characters in the game "Army of Two - The Devil's Cartel".

(Taken from the AoT wikia)
Biography

Alpha is a veteran of multiple armed conflicts with the U.S. Military and Special Forces. He never thought about becoming a mercenary until Rios offered him the opportunity to use his tactical skills "for good." He still sees himself as more of a soldier or operative than a mercenary. Alpha is a born leader and thinks of T.W.O. as a chance to bring military precison and ruthless efficiency to a paramilitary environment.