Black Rock Quarry Control. Once you reach the elevator going to the quarry you will notice it is broken. Continue toward the Black Rock Quarry and make sure to grab the Case Files - Fan Supplement document behind the large fans near the Clearance Level 5 door and then check the shelter beyond the.
Continue until you reach the next elevator leading this time to the excavation site. As its name implies Black Rock is a rock or stone-like substance of a blackish color. The locked door is connected to the room the Control Point is in.
Pick up the Security Clearance Level 5 and go through the door and into the service elevator.
Continue until you reach the next elevator leading this time to the excavation site. Black Rock Quarry Furnace Chamber. As soon as you get there via the control point avoid the two Astral Spikes a head. In the Black Rock Quarry Entrance where the Astral monster is is a door in an above alcove you can enter.