Yip, Curious One, I can sort of back your oppos up on that - although a slightly different decade. 1987 - BATUS (British Army Training Unit Suffield), near Medicine Hat, Alberta, I was working the night shift with the Canadian MPs (not RCAF techies) when we had to carry out a patrol of the nearby ammunition compound.
The compound itself which, as I recall, did have a guardroom at the gate, is about the size of the UK and surrounded by a fairly high but not unclimbable barbed wire fence and is full of well secured, hard storage bunkers. But the live ammo for the following day's fun and games is all out on pallets - shedloads of the stuff, 9mm, 7.62mm, 84mm, 120mm for the tankies, you name it, it was there, all out in the open and insecure.
Was there a patrolling guard in sight, with a personal weapon capable of cutting anyone in half?............Nope, not one Rambo to be seen, not even Son of Rambo, Rambo II, Rambo III or Rambo's pet budgie!
But then again, this was the responsibility of the British Army and it was raining!
But it does seem like your Walt has been outed!
Hang on........I've gone off thread......sorry lads, thread hijacker on the loose.......cut him in half, quick.....even better, chuck him in a jet intake!