Underground (Part 2)

Underground - Sector 2: Mars City Service Sub-Level is the fourth level of The Lost Mission. In this level, the marine must be led by a sentry bot to the elevator that leads to Exis Labs, and on the way, the marine must fight a bunch of heavy-weight foes. The player can obtain rocket launcher in this level, as well as a chain gun, if they haven't done so in the last level. Cacodemons, revenants, chain gun commandos and Hell knights first appear here.

Summary
As usual, the marine proceeds through various corridors and kills everything on his way. Early on, he encounters a sentry bot station and activates it. Then he continues to proceed through various corridors and kill everything, but this time with a sentry bot. After a while he enters Main Service Lift room and gets attacked by Hell knights which also likely destroy the sentry bot. After killing them, he goes to Transfer Control and finds there a power cell to power up the lift, then he takes the lift. It takes him to Exis labs.

Objectives

 * Find Service Access to Exis Labs
 * Traverse service sub-levels to reach Exis Labs.


 * Restore Power to Service Lift
 * Acquire power cell from Transfer Control area.
 * Use power cell to restore power to main service lift.


 * Take Service Lift to Exis Labs
 * Use main service lift to reach Exis Labs.

Characters

 * Dr. Richard Meyers

PDAs

 * Phil Anders. Found in Central Sub-System Control.

Enemies
The monster count is the same on all skill levels. * Two of the imps are crawlers. Some of the imps are spawned by the arch-viles, so their amount may vary. Here only a number of distinct spawn points is shown.

Items
The item count is the same on all skill levels.

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

Locker codes
For the sources of the codes, see Doom 3 locker codes.
 * Storage locker #108 - Ammunition: 847. Contains: med kit (large), security armor, ammo belt, rockets (large).

Secrets

 * In Sub-Level Corridor SL-1A one can jump over the railing to get a security armor.
 * In Sub-Level Security one can also jump over the railing and find supplies under the floor, then crawl along the pipes and climb up the ladder to find a hidden room with a chain gun.
 * Upon entering the Main Service Lift area, turn to the right and a small dark compartment with supplies can be found.