Well I haven't received any confirmation that you could wear those tags, and wearing tags so similar to actual leaders name makes me have my doubts about what you were doing, especially when you are recruiting for that regiment that you are not in.
Impersonating is indeed a very serious offence. Until I hear otherwise from the regiment leader that you could indeed wear his tags, this will go down as impersonating.
Unban on 12/21/13 so bump this thread on that day.