This specifically targets the portion of SOP, which MPs are obligated to follow within rules - that forbids MP from wearing no headgear or other cosmetic headgear if they so desire. “MP’s must always use their department-specific headgear.”
Why does this exist? It’s been a thing for years, and when I regularly played MP this was one of the things that bothered me most. I didn’t like it, I didn’t know a single other person who played MP who liked it. I didn’t see any other players who either didn’t care in general what MPs wore on their head or actively didn’t like it. It serves no purpose, I don’t think MP berets even have an armor value anymore.
As MP is nominally a roleplay role, (at least it should be) I think allowing them to at the very least not wear their helmet or a headband instead is perfectly reasonable. We don’t even force squad leaders to wear their helmets, and them not wearing them is actively detrimental to the round.
I really do genuinely think it should just be removed from the SOP, there really is no justification I can think of to have it.