Weaponry as we all know is a very specialist art. I try to stick to one breed, as many of us on the this site do too and specilise in them.
I can't imagine where I would start on say War & Peace for example, with 2 band muskets and the like and showing the proper way for the benefit of a factual type film, soldiers loading their muskets in the proper Military format of the day.
That in itself takes some learning. Then to pass that on with the film industry deadlines pressed on him, to non trained Military men, is hell of an achievement.
Weapon drills and skills, are the thing that keeps men alive in battle, and the more proficient you get, the more chance you have of your own survivability, in delivering accurate rounds to win the fire fight.
I watch Military films like many of us, and always look for the weaklink. Since Paul has been on the circuit he only accepts the best from these lads which clearly shows!