system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout] Why doesn't the Brotherhood use the more advanced enclave armor?
gpt
I think the basis of their logic falls on reserves. The T-60 is abundant, and they know it well. Some higher ups have special armor, but in general the same rule of thumb applies to old world military. We could put every soldier in Kevlar/neoprene combat armor, but it's easier to stick with camo fatigues and save the elite gear for the elite crew.

EDIT: Those responding, consider this is the fallout universe, not ours. The reality we know has little relevance. Comparison of modern day military is as helpful as comparing the star wars universe standard outfitting, which is not at all.