Actually yes as Panzer further solidifies with his proof.
In the new Painting book for tau they do destinguish the diffrent teams by name and leaders. and your namking convention with [sept][cast+ rank][Name due to feat][...]
So a Fire warrior can have tons of names. but its usualy one thing that sets them out more. Like shas'O cartfreight erhh I mean Farsight ( Bonus point to the one that gets that reference
) or like shas'O shadowsun
so for instance in name giving example. if we did a water cast embassy model who always remaind calm and peacefull during negotiations a fitting name for that individual would have been if they were ranked a diplomat : N'dras Por'El Doran
Otherwise I kinda picture them as nameless ones... so basicly in class the unnoticable ones would be Teacher:"Hey, you! yes you, blue fish # 34851. Quiet down, I'm tryign to teach to you why Kroot loves fish!"
it's your fluff most of all so have fun with it