So who were those ground troopers we saw in Ar-558?
Yes, who are these weird people that appeared for that one episode that are never mentioned before, or ever again after. Who exist as rather disgusting xenophobes ready to kill anything that twitches and stand against everything the Federation holds dear?
A strange apparition like group who existed for mere hours and were gone, no name, no insignia, no allegiance, almost like they were very deliberate and poorly thought out set pieces in an episodic drama that were dropped without much more thought than they were created with.
I guess we'll never truely know...
(Since the show runners refuse to talk about them since.)