I can relay a story my dad told me about boot camp.
They crawled through mud a foot deep with barbed wire 2 feet above their heads. Pig guts were tossed all around and hanging from the wire to simulate the intestines of less fortunate Marines blown up by mortor fire.
He said they fired live 30-06 machine guns 30 inches above their heads and swept the gun back and forth and if you stood up you could be shot.
Now days, I guess all you have to do is call a “Time Out” and it all stops.
For later.
They would still crawl through it but the live rounds might be a specialized course.
The only reason for such a damning remark that is that you can't possibly imagine that anyone else could possibly be as big a bad ass has your dad.