When you play The Dark Beyond, at the beginning when you get to the "Collider" your Ghost says the guardian took this place from and unknown Fallen house. The Fallen that arrive during the fighr that comes after wear the color green and do not any house markings, also all the Fallen i've seen on the surface wears the same color. So my questions are : What house could they be that we know of? Could this be a known house wearing different colors for a Special Op? Could they be from house judgment and Variks is not aware of them? Could they work for Variks from the shadows?