You'll start off in the tram you just left in, and it will stop at a train station. Look around, collect some items, and listen to McNeil via Radio, and ascend up the stairs ahead of you. Enter the door at the top, and go through the next hall that leads to the Communications Tower. A soldier and 2 Z-Secs will ambush you, kill them, and continue down the path to the next room.

This is a rather small area with pipes and steam everywhere, a few zombies and a Vulgar will be wandering about the place, Kill them, and to the door ahead of you.

You are now in a big stair-set with blood all over it, with double doors at the bottom. Halfway down, a vulgar will pop out from the ceiling, kill him, and go through the double doors.

To your left, is a zombie, kill him, and ignore the elevator, as it fails. Instead, go through the double doors at the end of the corridor.

This is a large room, a Commando Zombie and a few Vulgars will attack you. When the area is clear, continue to the next area, ignore the "skytram station" doors, the access is denied. Same for the bay door to your right, go through the door, and up the stairs, a soldier will attack you, kill him, and continue to the teleportation science room.

Here, multiple Z-Secs will attack you, along with a few zombies, when the area is secured, move to the next area, the second you open the door, a Pinky-Demon attacks you, once he is dead, a zombie pops out, once he is dead, move to the teleportation chamber.

Tons of Z-Secs, soldiers, and Vulgars will attack you here. Kill them, and head down the ramp to your right, walk past the teleporter, and to the control room. You'll find a rocket launcher in it, and go to the access panel, scan for active pads, and select "Delta Labs".

The teleporter will fail, due to insufficient power, and a Hell Knight will teleport through it. Then the doors will unlock. Make your way back up to the entrance of the room, killing the Revenants and Commandos up the ramp. Then go through the door, to the "teleporter mechanical" room.

In here, many Vulgars, Z-Secs, and zombies will fight you. Take a right, so you can go on the bridge overlooking the room. Follow the path, kill the Revenant and zombies in your way, and go through the door to the storage room.

Right away, kill all the zombies and Vulgars in the room, to your left, is a locker, ignore it for now and go through the double doors at your right to the next area. Right when you open the door, a pinky demon will attack you, kill him, and hop down into the ventilation shaft below you. Work your way through the path, and a dead technician will pop out above you, collect the skytram access key near you. Then hop out of the ventilation shaft.

You'll be in a closet now, collect the PDA near you, and head through the door. In front of you is an elevator. Go into it, and select "lobby". Once it opens, you will be in a familiar area, go through the double doors ahead of you to "Teleportaion Reception".

A hell knight will spawn, once it is dead, 2 Revenants will spawn. When the area is secure, go down to the door that reads "skytram station". Then scan your access card on the panel. The doors will now open. Revealing a Revenant. Kill him, and go inside the skytram and activate it.

Enjoy the ride!

Once the ride is over, head over to the bay door and exit to Phobos Labs: Sector 2.