Tunnel Disturbance

## Continuity

**Zone**
Z1 · Z2 · Z3 · Z4 · Z5 · Z6 · Z71. Off the Rails
2. Casual Casualties
3. **Tunnel Disturbance**
4. Power Up!
5. Twist of Freight

**Tunnel Disturbance** is the third level of The Six Underground.

## Secrets

1. In the starting room, open the purple wall directly in front of you.
2. Just past the starting room, in the yellow-hued, flooded hallway, dive under the water and blow up the crack in the wall.
3. Inside the room with the hub of train tracks, go inside the doorway labelled "Unit B"; go into the vent, and all the way up to where you have to strafe-run to an adjacent ledge out of the other vent cover. On this walkway, you will see a door behind a purple crate. This door can be opened.
4. Further along the level, past a hole in the left-side wall which contains a river of nukage, you will come across a section of this train track hall with a ledge on the left side with a pipe coming out of the ceiling. On this ledge, against the back wall, is a vent you can destroy and go inside.
5. When you get to the train track area that is over a pool of water with a walkway on your right, dive under the water (while facing the door across from where you entered), swim to the right and surface.
6. Upstairs in this same area, flip the "Gate A" switch, dive back under the water, and swim through the now-opened Gate A door.
7. Eventually, you will come to a large room with an arcing beam of electricity you cannot pass until you reroute power. In this area, on the upper walkway (where you enter the room from), ahead of you and to the right, you will see a green shipping container standing on its side. There is a crack on one side of the container. Blow it up and make your way to the secret.
8. In this same area, head to the left-side wall after entering the room, and use the trash bag to jump on top of the grey stone wall. From here, jump to the metal beams with the armor pickups, then from there to the red-orange shipping container across from them. You hit the secret when you land on top of the container, but the goodies are actually on the other side of it, on the floor.
9. Further along, you will come to a hallway with a green, purple, and red pipe in the corner, and a Skinjob waiting to ambush you. The blue/yellow-striped wall panel just to the left of these pipes can be opened, revealing a switch. Use this switch and crawl into the niche it opened next to you.
10. Past the previous secret, head inside the "Control Room". Jump behind the server rack directly in front of you (where the electricity signage is) and use the switch on the back of the rack to open up an alcove in the corner wall.
11. At some point, you will come to a tunnel with a stone wall to your left and a metal wall with pipes and wiring on your right. Keep looking at the stone wall and you will eventually spot a crack in it. Blow it up and head on in.
12. Just past the previous secret, you will come to a hole in the left-hand wall with a destroyed red pipe full of water. Dive under the water and swim towards the secret ietem.
13. Inside this same area, just ahead of the pipe containing the previous secret, you will spot a bright red barrel against the corner of a brick wall that is splotched with a grey substance. Do not destroy it. Instead, jump on it and up to the secret alcove that you see above it.