Most response groups practice the 2-in/2-out rule during a HAZMAT response. But the devil is in the details when complying with 1910.120(q)(3)(vi).
How many have attempted to pick up a grown man, weighing 200+ pounds, while they are donned in a wet Level A suit and carry them out of the Hot/Warm Zone? I can state it confidentially… it will NEVER HAPPEN. Back in my heyday, I was a bodybuilder and could squat over 400 pounds, bench over 400 pounds, etc. and one day I was tasked with getting my partner out of a Hot Zone with the help of two other rescuers. The three of us could NOT get him to safety before we ran out of strength and breathing air!