Actually, the one time I was stuck on a rear detachment, it was horrible. Much worse than being downrange. An E-5 as Rear D First Sergeant, getting taskings from battalion as if we were at full strength ( I was tasked to provide 10 people daily for police call/CSM detail- we had 14 people on Rear D, and most of them were unavailable for one reason or another). I pulled CQ every other night, and still had to work every day. I had two SSGs and one SFC with the company, but the SFC was pending courtmartial, and the SSGs were clearing post.
I was stressed, and unhappy. So there’s more than a grain of truth here.
The main body? They were at Gitmo running a refuge camp for Cuban boat people. And having a grand old time. Swimming, sunbathing, and loads of dirt cheap booze.