Phobos Labs - Sector 3: Main Reactor

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PHOBOS LABS - SECTOR 3 - "Power requirements for Site 1 are enormous and are generated in Sector 3 by an extremely efficient Plasma Rector. This revolutionary technology was developed by UAC scientists within the Phobos Labs."

Phobos Labs - Sector 3: Main Reactor is the ninth level of Doom 3: Resurrection of Evil. The player shuts down the reactor and life support systems here.

AREAS IN PHOBOS LABS SECTOR 3:

Transfer Bay
Skytram Station South
Phobos Labs Exterior
Skytram Airlock
Skytram Junction
Skytram Station West
Reactor Systems
Plasma Storage
Reactor Mechanical
Reactor Core
Lower Maintenance
Reactor Control
Reactor Support
Energy Processing
Maintenance Elevator
Airlock Vestibule
Airlock Chamber
Phobos Labs Rooftops
Airlock Chamber
Upper Maintenance
Maintenance Elevator
Lower Cargo Tunnels
Environmental Support
Maintenance Shaft
Environmental Control
Upper Maintenance
Skywalk
Skywalk Access
Transfer Bay

Walkthrough[]

Go on a tram and go through some goofy stuff on the outside of the labs before leaving it and entering a decently sized room with some zombies. Kill them and go into a storage closet with a ton of Plasma ammo and a Plasma Rifle. Leaving it will spawn a couple of Vulgars and Revenants.

Go down a hallway, and enter the Reactor Core room, where you will go down levels of elevators around the outside of it, while fighting Forgotten Ones and Cacodemons. Go into some maintenance areas and get a keycard and a PDA before going up an elevator. Going back up will spawn Vulgars, as well as Forgotten Ones and Cacodemons when you go back up. Go into the Reactor Control room and open a cabinet and shut down the reactor before going out of the room and raising a bridge to go to another room. This room contains a trio of Z-Secs and an elevator, leading to a lower area containing a boatload of Pinkies and Revenants. Kill them, and a Sentry Bot will boot up and lead you through the Energy Processing area, filled with Wraiths and Vulgars, at the end an elevator.

Grab some stuff and cycle an airlock before going into a mars surface area with no monsters. Cycle the other airlock and immediately be ambushed by a group of Z-secs and Vulgars. Go down another elevator and into the Cargo Tunnels. Here you will face three Hell Knights in quick succession. After you kill them all, go into a room with a Pinky, and go up some stairs and catwalks, facing different demons trying to stop you. Go up a ladder and shut off the life support. Go into the scenic Skywalk room, and exit the level.