This very simple mod adds uniform scripts to Great Houses guards armor so they will attack you if you are wearing their type of bonemold cuirass/helm. Redoran guards will attack you if you are wearing Gah-Julan cuirass etc.

Pieces of armor affected by the mod:
Gah-julan Cuirass and Helm (Redoran type)
Armun-an Cuirass and Helm (Hlaalu type)
Telvanni Cephalopod Helm and Telvanni Guard Shield (due to using the same cuirass as hlaalu and to be honest I don't think they give a damn thing about anyone wearing it :P)