system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars: Rogue One] If stormtroopers are an elite assault unit, what are they doing guarding prisoners?

Patrolling a cell block full of gangsters and insurgents and riding in prison transports seems like a waste of elite troops. Should there be non-stormtrooper auxillaries doing those details?
gpt
You don't want to feed your best troops into a grinder 24/7. Even the most hardened vet will start to lose focus with a constant high operations tempo like that. That will turn an elite unit of killers into a group corpses broken headcases. You want to rotate some assault troops here and there when you need them. When you don't need then, you rotate them to other lighter duties. Guarding a base, light recon on a moon, VIP/prisoner transport duty. It gives your best some time to rest, brush up on critical skills they don't use often, and if you do get attacked you already have your most experienced killers on hand, usually itching to get back in the action. Win/Win.