I found little domed bumps on the floor, my scan picking up the dormant tech inside each one. They were simple beacons, probably marking vehicle parking/landing zones. The hangar had been intended for larger craft; this area could be meant for small aircraft or cargo lifters or vehicles that would travel the tunnel, hopefully with more safety features than the jury-rigged one we had found. ScoutDrone2 had just encountered a foyer leading to a small set of rooms with plumbing attachments and drains, probably a restroom.