Angel's Blood Mission (1987)

Crime boss Barton's (Mike Abbott) reign of terror is about to end. John Foley (Mark Watson), called in to avenge the death of an innocent man, was trained by the elite American Commandos in Nam. Since the war, he's put his special skills to work many times. But never like this. When John Foley enters the steamy, seedy realm of the underworld, survival is the name of the game and do unto others before they do unto you is the only rule to live by.