Quake II/Borehole

Level objective
The objective for this level is to find the service access to the Factory.

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Secrets
This level has three (3) secrets:
 * 1) In the room where the Hyperblaster is located among some exploding barrels, look behind the stairs. Two barrels are hiding an Armor Suit and some Rocket Ammo.
 * 2) Where you activate the drilling system again (by pressing a pair of buttons), you will get ambushed by a couple of enemies that are coming through the walls. Shoot the wall in one of these rooms (on the opposite side of the buttons), and it will take you to an Adrenaline, Armor Shards and an alternate exit.
 * 3) (add content)