We have one outfit for combat units, whic is "Son", the one you get at the begining.
Maybe those clothes are really like, how nobles will look like?
After all I doubt that Angleans with their lacking resources and icy surrounding would spend tons for dyes to actually make every uniform colorfull
I think the uniforms would be totally different, especially in Arashi troops, where they really have what they had before, and what their personal tribes can gather.
Maybe makeovers of salvaged uniforms of other troops?