Black Rock Processing Control Bridge. From the Atlas Chamber head toward Black Rock Processing and hang a right into the corridor behind the Clearance Level 5 door and then Levitate through a hole in the. Once youre at the plant sprint around the perimeter of the domed area until you.
Head back down to the walkway by following the signs for Black Rock Processing then cross the bridge go up the stairs to the right and drop down into. Start with the maintenance then follow the signs for the Black Rock treatment area. To get to the Black Rock Processing area in Control you need to build yourself a bridge.
First head to Central Maintenance using the sector elevator.
So the first step is to finish the Main Mission Old Boys Club at the end youll get clearance level 4 which youll need. Keep going past the door near Arish and into the Black Rock Processing sector. Clear out the enemies in the security room. Go right then straight and then drop down.