Underground (Part 1)

The Lost Mission maps

Enpro: Sector 1, Sector 2 Underground: Part 1, Part 2 Exis Labs: Part 1, Part 2 Hell Hell Outpost
Map name: game/le_underground

Underground - Sector 1: Mars City Service Sub-Level is the third level of The Lost Mission. The marine must find a keycard in order to go through security to deactivate the lockdown so he may proceed to the next sector to get to Exis Labs. Trites return in this level, and it is the first opportunity to acquire a chaingun.

Summary[edit]

Spoiler Warning: Plot details follow.

To proceed further, the marine needs to disable security lockdown in Security Staton SL-3, and in order to access the station, the marine needs a key card. The marine then searches through a whole bunch of corridors in order to find that key card. At some point he encounters a lift, which, upon activating, he is swarmed with trites. Anyway, it turns out the key card was on a catwalk of the same room as the door the marine needed to unlock. He unlocks the door, disables the security lockdown and leaves that part of the Underground via a lift.

Spoilers end here.

Objectives[edit]

Disable Local Security Lockdown: Acquire security station pass key
Return to Security Station: Use security terminal to gain access to service sub-levels.
Find Service Access to Exis Labs: Traverse service sub-levels to reach Exis Labs.

Areas[edit]

Elevator
Transfer Control
Service Access
Service Corridor SL-4
Pumping Station A-12
Filtration Control
Filtration Monitoring
Supply Storage
Service Corridor SL-11
Fluid Transfer Control
Security Station SL-3
Sub-Level Transfer
Transfer Bay

Characters[edit]

UAC announcer

PDAs[edit]

Bob Thompson. Found in Filtration Monitoring.

Statistics[edit]

Enemies[edit]

The monster count is the same on all skill levels.

Enemies	Amount
Zombie	9
Machine gun Z-Sec	2
Shotgun Z-Sec	1
Trite	14
Imp*	15
Tentacle commando	1

* Three of the imps are crawlers.

Items[edit]

The item count is the same on all skill levels.

Items	Amount
Chaingun	1
Bullets (small)	2
Shells (small)	2
Shells (large)	2
Clip (small)	6
Clip (large)	1
Grenades	2
Ammo belt	3
Med kit (small)	8
Med kit (large)	3
Armor shard	22
Security armor	1
Key card	1

There are two health stations with 100 health each on the level.

Starting weapons[edit]

If the player starts this level via a console command, they will start with these items:

Items	Amount
Shotgun	1
Machine gun	1
Bullets (large)	1
Shells (large)	2
Clip (large)	3
Grenades	2
Security armor	1

Locker codes[edit]

For the sources of the codes, see Doom 3 locker codes.

Storage locker #054 - Ammunition: 631. Contains: chaingun, ammo belt x2, med kit (small).

Secrets[edit]

In Transfer Control, in the place where the player finds the key card, one can climb under the floor via a gap and find some health and armor there.
As more of a trick than a secret, if the player runs out of the room immediately after calling the lift in the trite room, the door will lock behind you and trap the trites inside. The door will not unlock until most of the trites are dead. The trites can then be tricked into killing themselves by standing near the door and the window.