If you follow the walkway around, youΓÇÖll end up in a room with two buttons on the wall and some goodies in the corners. Punch both buttons to activate the mine machinery. Once the sequence is completed, two or three Gunners will break out of the walls. In one of the holes in the wall, there will be a ring. Shoot at it to access Armor Shards, Adrenaline, and a fast way to exit the level. Step on the moving tram and enjoy the ride. Hop off just before it goes into the wall and exit the door to the Drilling Area (4).
