Pic of The Last Of The Gunfighters found in an old USMC footlocker in Rocker's garage. Taken at Da Nang, Republic of Viet Nam, 1967. Check out the mustachioed brown-eyed handsome man on the far left.
For civilians -- VMF(AW) stands for Marine All Weather Fighter Squadron.
451 flew the F-8U Crusader, which is known in military circles as the last U.S. fighter designed with guns as its primary weapon. Missile-only aircraft were at a distinct disadvantage in the environment many thought passe' --- the dogfight. The Crusader with its guns, and Crusader drivers well versed in dogfighting, led to a resurgence in gun-equipped aircraft, and a renewed emphasis in ACM -- Air Combat Maneuvering.
The Marine Pilots in the pic were Top Guns before there was such a name.