Doom 3 Walkthrough Delta Labs Sector 2A

September 12, 2016 (Last Updated: ) | Reading Time: 9 minutes

This Doom 3 walkthrough is divided into 27 total pages.

You can jump to nearby pages of the game using the links above.

Delta Labs Sector 2A

Doom 3 Walkthrough - Doom 3 788
Doom 3 Walkthrough - Doom 3 788

Proceed down either walkway and an Imp pops up from the subfloor. A second Imp joins him in battle.

Doom 3 Walkthrough - Doom 3 789
Doom 3 Walkthrough - Doom 3 789

Grab this medkit and armor vest before continuing through the door ahead.

Doom 3 Walkthrough - Doom 3 790
Doom 3 Walkthrough - Doom 3 790

Step forward and experience this bloody vision.

Doom 3 Walkthrough - Doom 3 791
Doom 3 Walkthrough - Doom 3 791

Two Imps, a commando and a zombie attack. I'm using a shotgun here but found the plasma gun to be preferable.

Doom 3 Walkthrough - Doom 3 792
Doom 3 Walkthrough - Doom 3 792

As you enter you'll find armor to the right, and these two medkits behind the counter. Note the red button under the counter's left side.

Doom 3 Walkthrough - Doom 3 793
Doom 3 Walkthrough - Doom 3 793

Here's a close up. Press the button then look behind you.

Doom 3 Walkthrough - Doom 3 794
Doom 3 Walkthrough - Doom 3 794

A secret panel opens, revealing shells, grenades and armor.

Doom 3 Walkthrough - Doom 3 795
Doom 3 Walkthrough - Doom 3 795

In the restroom, you'll find armor and a fat zombie in the middle stall. If you jump up and down on the toilet seat like I am here (to see into the neighboring stall, of course) two Imps will spawn.

Doom 3 Walkthrough - Doom 3 796
Doom 3 Walkthrough - Doom 3 796

Two Imps are waiting as you exit the restroom. Call the elevator seen in the back and ride it up to Level 2 - Archives.

Doom 3 Walkthrough - Doom 3 797
Doom 3 Walkthrough - Doom 3 797

A whip commando attacks through that door ahead -- I recommend the plasma gun. Clips are on each side of the corridor. As you approach the clip on the right, this Imp emerges from the right wall. Armor is in his alcove. Continue through the door ahead.

Doom 3 Walkthrough - Doom 3 798
Doom 3 Walkthrough - Doom 3 798

Through another door and these zombies attack. Grenades and a medkit are to the left.

Doom 3 Walkthrough - Doom 3 799
Doom 3 Walkthrough - Doom 3 799

A fat zombie is hiding on the right. Defeat him then this commando spawns. Peter Raleigh's PDA on the left has some fascinating background revealing the psychological trauma suffered by the teleportation test subjects. Search the other workstations for shells and clips.

Doom 3 Walkthrough - Doom 3 800
Doom 3 Walkthrough - Doom 3 800

Kick a box so that it's propped up as seen here. Shoot out any remaining glass and climb into the room for cells and rockets.

Doom 3 Walkthrough - Doom 3 801
Doom 3 Walkthrough - Doom 3 801

Defeat the zombies blocking your way to the health terminal on the left, and the supplies in the unlocked cabinet on the right. You don't have the code for the cabinet on the left - yet.

Doom 3 Walkthrough - Doom 3 802
Doom 3 Walkthrough - Doom 3 802

Pass through two sets of doors as Betruger taunts you. Ready your plasma gun to defeat two commandos and this Revenant. Continue straight ahead as the doors on either side are locked.

Doom 3 Walkthrough - Doom 3 803
Doom 3 Walkthrough - Doom 3 803

Don't miss the medkit on the left before climbing over the debris.

Doom 3 Walkthrough - Doom 3 804
Doom 3 Walkthrough - Doom 3 804

Pick up some shells as you continue to the test chamber door on the left. The observation room door on the right is broken.

Doom 3 Walkthrough - Doom 3 805
Doom 3 Walkthrough - Doom 3 805

An important cutscene plays. McCormick explains how the hellforces followed Betruger out of the portal. Your objectives are updated. Use the amber terminal on the right to receive an email about the soul cube.

Doom 3 Walkthrough - Doom 3 806
Doom 3 Walkthrough - Doom 3 806

Use the health station -- don't proceed thorough the door on the right just yet.

Doom 3 Walkthrough - Doom 3 807
Doom 3 Walkthrough - Doom 3 807

Instead, backtrack across the debris-filled corridor, defeating a commando and a Revenant.

Doom 3 Walkthrough - Doom 3 808
Doom 3 Walkthrough - Doom 3 808

Return here to find that McCormick has unlocked both doors. Ready your shotgun before opening the operations door -- an Imp is crouched within, followed by another.

Doom 3 Walkthrough - Doom 3 809
Doom 3 Walkthrough - Doom 3 809

Follow the corridor left to this room and defeat a waiting commando. Grab the armor and medkit.

Doom 3 Walkthrough - Doom 3 810
Doom 3 Walkthrough - Doom 3 810

Backtrack to the opposite corridor and peer through the window to see a feeding zombie. As you advance an Imp spawns behind you.

Doom 3 Walkthrough - Doom 3 811
Doom 3 Walkthrough - Doom 3 811

Hop through this broken window in the office of Mal Blackwell. Grab Frank Cinders' PDA for some background and the code 538 to locker 112, containing shells, cells and armor.

Doom 3 Walkthrough - Doom 3 812
Doom 3 Walkthrough - Doom 3 812

Slip under the stairs for cells and armor.

Doom 3 Walkthrough - Doom 3 813
Doom 3 Walkthrough - Doom 3 813

Once atop these stairs you'll receive a new objective.

Doom 3 Walkthrough - Doom 3 814
Doom 3 Walkthrough - Doom 3 814

Backtrack out the Operations door, battling two Imps along the way.

Doom 3 Walkthrough - Doom 3 815
Doom 3 Walkthrough - Doom 3 815

Proceed through this Security Bio Labs door, directly across from the Operations door.

Doom 3 Walkthrough - Doom 3 816
Doom 3 Walkthrough - Doom 3 816

Three zombies are on the other side. An armor vest is to the left.

Doom 3 Walkthrough - Doom 3 817
Doom 3 Walkthrough - Doom 3 817

Approach this door on the right to learn that the halon gas system prevents access. Instead, continue through the door on the left.

Doom 3 Walkthrough - Doom 3 818
Doom 3 Walkthrough - Doom 3 818

Defeating this zombie triggers the spawn of two Imps. You may wish to grab the medkit and armor behind the cabinets on the left first. Clips are on the counter to the right.

Doom 3 Walkthrough - Doom 3 819
Doom 3 Walkthrough - Doom 3 819

Grab the medkit under the stairs before proceeding through the door beyond - where a fat zombie awaits.

Doom 3 Walkthrough - Doom 3 820
Doom 3 Walkthrough - Doom 3 820

Follow the corridor to this room, where four zombies attack.

Doom 3 Walkthrough - Doom 3 821
Doom 3 Walkthrough - Doom 3 821

Approach the terminal on the left to hear an audio log and read the October and November reports - great background. Activate the indicated switch to open a secret panel, revealing a health station.

Doom 3 Walkthrough - Doom 3 822
Doom 3 Walkthrough - Doom 3 822

Gawk at these specimens then continue through the door ahead.

Doom 3 Walkthrough - Doom 3 823
Doom 3 Walkthrough - Doom 3 823

Defeat two Imps - one ahead and one behind.

Doom 3 Walkthrough - Doom 3 824
Doom 3 Walkthrough - Doom 3 824

Defeat two zombies in this room, then Imps spawn - two in this room, and two behind the door you just passed.

Doom 3 Walkthrough - Doom 3 825
Doom 3 Walkthrough - Doom 3 825

Grab the supplies in this side room, including rockets and armor.

Doom 3 Walkthrough - Doom 3 826
Doom 3 Walkthrough - Doom 3 826

This puzzle is much more straightforward than I first thought. Select any number with a canister, and that canister is placed in front of you. Select a number with an empty slot then jump onto the canister before it begins moving.

Doom 3 Walkthrough - Doom 3 827
Doom 3 Walkthrough - Doom 3 827

The crane will swing you past this ledge where you can access the supplies seen here before slipping into the crawlspace. Simple.

Doom 3 Walkthrough - Doom 3 828
Doom 3 Walkthrough - Doom 3 828

Supplies are on the left, including two medkits. This opening allows access to the room below.

Doom 3 Walkthrough - Doom 3 829
Doom 3 Walkthrough - Doom 3 829

Defeat these two Imps then peer through the window on the left.

Doom 3 Walkthrough - Doom 3 830
Doom 3 Walkthrough - Doom 3 830

Inside you can see the luscious BFG-9000. Michael Abrams' audio log contains a request for security code 901. A subsequent email on his PDA contains a correction from security indicating they have changed the 0 to a 3. The code for this door is 931.

Doom 3 Walkthrough - Doom 3 831
Doom 3 Walkthrough - Doom 3 831

A medkit is to your left as you enter the room. Use this control panel on the wall to open the BFG-9000 chamber.

Doom 3 Walkthrough - Doom 3 832
Doom 3 Walkthrough - Doom 3 832

Approach the chamber to pick up the BFG-9000. I recommend that you conserve ammo on the BFG, maintaining 8-12 rounds for an upcoming boss battle in Delta Labs Sector 4.

Doom 3 Walkthrough - Doom 3 833
Doom 3 Walkthrough - Doom 3 833

The next room down the hall has this terminal, revealing the code to security locker 116 - 972.

Doom 3 Walkthrough - Doom 3 834
Doom 3 Walkthrough - Doom 3 834

The cabinet is in the same room. Inside you'll find armor, a medkit, a plasma gun, and BFG ammo.

Doom 3 Walkthrough - Doom 3 835
Doom 3 Walkthrough - Doom 3 835

Use this terminal on the right to purge the halon gas and unlock the door on the left.

Doom 3 Walkthrough - Doom 3 836
Doom 3 Walkthrough - Doom 3 836

Plasma cells are to the left and an armor vest is to the right. On this counter is a medkit and a terminal that will unlock the offices. Activating it spawns an Imp.

Doom 3 Walkthrough - Doom 3 837
Doom 3 Walkthrough - Doom 3 837

Keep left then battle this Revenant and Imp. Return through the Operations door ahead.

Doom 3 Walkthrough - Doom 3 838
Doom 3 Walkthrough - Doom 3 838

Keep right and battle several zombies before entering the now-unlocked office of Steve Rescoe seen here on the left. Inside are cells, a medkit and armor - plus Phil Wilson's PDA which has some background.

Doom 3 Walkthrough - Doom 3 839
Doom 3 Walkthrough - Doom 3 839

Return up these stairs to the now-unlocked Records Storage door.

Doom 3 Walkthrough - Doom 3 840
Doom 3 Walkthrough - Doom 3 840

After the first bend, this Imp attacks from behind a secret panel on the left. You'll find armor on the floor. More zombies attack from the right.

Doom 3 Walkthrough - Doom 3 841
Doom 3 Walkthrough - Doom 3 841

Note the medkit on this desk.

Doom 3 Walkthrough - Doom 3 842
Doom 3 Walkthrough - Doom 3 842

More zombies attack from all sides. Enter the server room ahead.

Doom 3 Walkthrough - Doom 3 843
Doom 3 Walkthrough - Doom 3 843

Grab the supplies from these two cabinets. The code for the left cabinet is on the sticky to the right of the keypad - 715.

Doom 3 Walkthrough - Doom 3 844
Doom 3 Walkthrough - Doom 3 844

Approach this cabinet to receive a new inventory item.

Doom 3 Walkthrough - Doom 3 845
Doom 3 Walkthrough - Doom 3 845

Don't miss the hand grenades in this next room.

Doom 3 Walkthrough - Doom 3 846
Doom 3 Walkthrough - Doom 3 846

Follow the corridor through this door for another zombie battle.

Doom 3 Walkthrough - Doom 3 847
Doom 3 Walkthrough - Doom 3 847

Armor is to the left of this elevator. Ride it to the lobby below.

Doom 3 Walkthrough - Doom 3 848
Doom 3 Walkthrough - Doom 3 848

Backtrack through these double doors and mow down a small army of zombies with your machine gun. Ready your chain gun.

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Doom 3 Walkthrough - Doom 3 849

Take out the two commandos that attack.

Doom 3 Walkthrough - Doom 3 850
Doom 3 Walkthrough - Doom 3 850

Proceed through this "Restricted Area" door.

Doom 3 Walkthrough - Doom 3 851
Doom 3 Walkthrough - Doom 3 851

Stay left.

Doom 3 Walkthrough - Doom 3 852
Doom 3 Walkthrough - Doom 3 852

Return to Ian McCormick to complete the objective. Listen to the video disk he gives you for some background.

Doom 3 Walkthrough - Doom 3 853
Doom 3 Walkthrough - Doom 3 853

Fill up on health then continue to the decontamination chamber on the right.

Doom 3 Walkthrough - Doom 3 854
Doom 3 Walkthrough - Doom 3 854

Wait for the decontamination process to complete before continuing through the door.

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Doom 3 Walkthrough - Doom 3 855

Activate the teleporter to initiate a brief cutscene and end the level.

More Doom 3 Walkthroughs

This Doom 3 walkthrough is divided into 27 total pages.

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