Naruto Mod: Warring States is a Warband Modification in development focused on bringing the Warring States Period to Life in an interactive sandbox gameplay environment.
Having only recently joined the Uchiha Banner, the Hagoromo were always a popular clan to be hired out by various lords of various lands. Their skill in medicine and medical arts gained them fame early on. Having previously located themselves in various lands, both great and small the Hagormo Clan grew in popularity very quickly and have had some relations with nearly every Shinobi Clan in one manner or another.
- Narutowarringstates.forumotion.com
ex. from naruto.wikia :
During their initial meeting with one another by a riverside, Hashirama Senju and Madara Uchiha discovered the body of a member of this clan, face-down in the river.
The word "Hagoromo" (羽衣) literally means "angel's raiment" or with regards to birds, refer to their wings, or plumage
"As you can see, they wear armour similiar to the Cloud Shinobi, yet have partial plating on their armor." -Sonne
4/4/14
Actually the hagoromo clan seem to be the same people related to the sage of six paths, Narutoforums.com