Hello, my suggestion is simple.
I want to add in Morgul Vale sub-faction named same. Orcs here are more intelligent, so they will dont attack player with align less than 100+ (same as gundabad orcs or uruk-hai). They should wear mordor equipment, and one piece or morgul armor (RANDOM). At the end, invasions should be in:
Common
Ithilien wasteland
Morgul Vale
Uncommon
Ithilien
Rare
Gondor
Gorgoroth
You cant buy horn of conquest, cause Morgul Vale got no commander (adding Morgul Orc to the Mordor Orc commander)
Thanks