@dudexpl: You don't have to quote a giant post just for a monosyllabic question.
It is a mod yeah, not only aesthetic but also useful, with a different color for my char and PA showing it is MUCH easier to identify myself in TC when the mod is fully zoomed out.
why do the other people are wearing a combar armor then?
Because mine is MKII, just ignore the PA whenever you see it on my screens.