>> even if you're in the Pentagon, you're part of an organization that is also fighting in the field.

9/11 demonstrated that the Pentagon is the field.

I don't think wearing a mask very crazy. I looks like good backup for the day the postit falls off the webcam.

Yes, armies generally tend to do this. It's not like that's unknown when you enlist.

When you want to have a rigid chain of command and people who all essentially always follow orders, you need conformity and obedience.

Won't agree with downdotes, I think it is an interesting distinction however. In school it's mostly about conformity to some 'business wear ethics' and avoidance of distracting flamboyant costumes, not obedience unliss teachers also wear uniforms to signal different rank.

In military they do have to institute obedience (you can get executed on the place for disobedience) and they already has an elaborate system of costumes to wear under different conditions.

To add to these another field/office distinction would

(1) increase cognitive load, (2) will bother those officers who work in the office since they'll be looked at as 'second-class' just from heir looks, and (3) camo isn't unfit for the office which (as sandworm101 have noted) can suddenly turn into a battlefield if they attack the building.

Overall, one less decision to make, and that decision would only benefit those in the field. Which are, by definition, not the highest-ranking.