Military patches for rank on kilt?

[OC Richard]

Yes no badges or patches are worn on Scottish military kilts (save for the panels shown above worn by the former Argyll & Sutherland Highlanders).

And obviously Utilikilts are a recent purely civilian invention.

So, there is no tradition or protocol to guide you, and you can do it any way you wish, any way you think looks good.

Personally I don't care for the mixing of military and civilian dress, but who am I to say? I never was in the military... perhaps if I had been I would think about it differently.