My Combat MOS's were 11M (Mech Infantry) 11H (TOW Gunner) and 19D Cavalry Scout.  I was never an anchor clanker.  

Training to mount a M2 on a HMVVW or a 240C Machine Gun  on a Bradley Infantry Fighting Vehicle or humping a Mortar Base Plate to spell the Gun Bunnies is teamwork.  

I watched multiple women in Supply  trying to put a M2 on a 2 1/2 ton or a 5 ton truck.  It fits on the ring mount pintle above the seats.  It wound up having to be done by the males; the women, even in pairs, wouldn't/couldn't get the job done!   They went all 'helpless' and the men did it.

My last day on active duty was in 1998.  You claim USMC experience in Korea in the 1960's.  

Weapons on which I met US Army proficiency standards did not even exist except as limited prototypes then.  The Mark 19 Grenade Launcher, The TOW 2 Anti-tank Missile, or the Bradley's 25mm chain gun.