That's actually a legit way of putting it. They stress us with running, carrying, moving etc. One time they had a rowing machine that we had to row on, carry some 30kg kettle bells a distance then get behind the gun. Take one shot go back to the rower etc. Was hard. They try to recreate stressed situations and have us problem-solve around them.

I actually am one of a small group who runs a .22LR version of the same thing. We get some 100 people at our shoots and run them all over the place. I've written about that before. Might do another one sometime.