Doom 3 Walkthrough Central Processing

September 12, 2016 (Last Updated: ) | Reading Time: 6 minutes

This Doom 3 walkthrough is divided into 27 total pages.

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

Central Processing

Doom 3 Walkthrough - Doom 3 1077
Doom 3 Walkthrough - Doom 3 1077

This Imp charges through the shattered window on the left. Another Imp spawns behind you. Grab the armor on the right before climbing through the window on the left.

Doom 3 Walkthrough - Doom 3 1078
Doom 3 Walkthrough - Doom 3 1078

Bullets and a shotgun are on the right. The cabinet on the left can be opened with code 571. Inside is a rocket launcher, rockets, and grenades.

Doom 3 Walkthrough - Doom 3 1079
Doom 3 Walkthrough - Doom 3 1079

This Wraith attacks as you leave the room. Note the health terminal on the left.

Doom 3 Walkthrough - Doom 3 1080
Doom 3 Walkthrough - Doom 3 1080

Keep left and battle a swarm of Cherubs. An Imp emerges from beneath the first room on the left. An ammo belt, clip and cells are in the second room on the left.

Doom 3 Walkthrough - Doom 3 1081
Doom 3 Walkthrough - Doom 3 1081

Follow the corridor and a Cherub-summoning Archvile spawns. Rush him with your chainsaw and he'll go down quickly. The chainsaw also dispatches any Cherubs he's summoned. Approach the door ahead and your objectives are updated -- obtain the access codes for Lab A.

Doom 3 Walkthrough - Doom 3 1082
Doom 3 Walkthrough - Doom 3 1082

Backtrack past your initial position then pop this Imp with your shotgun. A health station, armor and shells can be found in the office behind him.

Doom 3 Walkthrough - Doom 3 1083
Doom 3 Walkthrough - Doom 3 1083

Approach the door to the left and receive this new objective.

Doom 3 Walkthrough - Doom 3 1084
Doom 3 Walkthrough - Doom 3 1084

Press on through this unlocked door.

Doom 3 Walkthrough - Doom 3 1085
Doom 3 Walkthrough - Doom 3 1085

Carefully step across to the door ahead. A voice warns, "Sarge is waiting for you."

Doom 3 Walkthrough - Doom 3 1086
Doom 3 Walkthrough - Doom 3 1086

Imps and Trites attack beyond this door.

Doom 3 Walkthrough - Doom 3 1087
Doom 3 Walkthrough - Doom 3 1087

Be careful when using this security scanner on the right. If you select "Main Entrance Hall" a Trite will attack from behind the screen.

Doom 3 Walkthrough - Doom 3 1088
Doom 3 Walkthrough - Doom 3 1088

A Commando attacks from the hallway. Defeat him and this second Commando spawns. Note the armor on the floor.

Doom 3 Walkthrough - Doom 3 1089
Doom 3 Walkthrough - Doom 3 1089

Grab the bullets, cells and shells on the right before approaching the desk ahead.

Doom 3 Walkthrough - Doom 3 1090
Doom 3 Walkthrough - Doom 3 1090

Use this panel to open the storage area.

Doom 3 Walkthrough - Doom 3 1091
Doom 3 Walkthrough - Doom 3 1091

Crawl through the open panel here.

Doom 3 Walkthrough - Doom 3 1092
Doom 3 Walkthrough - Doom 3 1092

Inside you'll find shells and Tony Bates' PDA, alongside what is left of Mr. Bates. Listen to audio log, "Lab A Security Door" to learn the code 627.

Doom 3 Walkthrough - Doom 3 1093
Doom 3 Walkthrough - Doom 3 1093

Return to the Sector A door, battling Trites along the way. Enter code 627 to unlock the door.

Doom 3 Walkthrough - Doom 3 1094
Doom 3 Walkthrough - Doom 3 1094

Enter and the corridor transforms itself.

Doom 3 Walkthrough - Doom 3 1095
Doom 3 Walkthrough - Doom 3 1095

Carefully hop along to the opening ahead.

Doom 3 Walkthrough - Doom 3 1096
Doom 3 Walkthrough - Doom 3 1096

Through another door and this Cherub attacks from a secret compartment. More follow.

Doom 3 Walkthrough - Doom 3 1097
Doom 3 Walkthrough - Doom 3 1097

This armor is a trap. Approach it and a secret panel slides open and an Imp attacks.

Doom 3 Walkthrough - Doom 3 1098
Doom 3 Walkthrough - Doom 3 1098

A few steps farther and this Wraith and another Imp attack. This is close quarters so I'd suggest the chainsaw.

Doom 3 Walkthrough - Doom 3 1099
Doom 3 Walkthrough - Doom 3 1099

Approach the supplies on the right and another Wraith and more Cherubs attack. Heal at the health station. On the left is Charlie Haskell's PDA with the code 468 to locker 669. Continue through the door on the right.

Doom 3 Walkthrough - Doom 3 1100
Doom 3 Walkthrough - Doom 3 1100

Hop up to the supplies on the right. You'll find rockets, armor and an ammo belt.

Doom 3 Walkthrough - Doom 3 1101
Doom 3 Walkthrough - Doom 3 1101

Don't bother trying to make this impossible jump.

Doom 3 Walkthrough - Doom 3 1102
Doom 3 Walkthrough - Doom 3 1102

Instead, backtrack past more Commandos and Cherubs.

Doom 3 Walkthrough - Doom 3 1103
Doom 3 Walkthrough - Doom 3 1103

Ride this lift up to level 2.

Doom 3 Walkthrough - Doom 3 1104
Doom 3 Walkthrough - Doom 3 1104

A Wraith attacks as you step off the elevator. An Archvile spawns that summons Cherubs. The Soul Cube takes out the Archvile quickly.

Doom 3 Walkthrough - Doom 3 1105
Doom 3 Walkthrough - Doom 3 1105

Ready your chainsaw as you continue into the room. Wraiths attack, followed by Trites.

Doom 3 Walkthrough - Doom 3 1106
Doom 3 Walkthrough - Doom 3 1106

In large numbers the Trites are particularly nasty. Back up to a wall so they can't get you from behind, then decimate them with your chainsaw as they approach.

Doom 3 Walkthrough - Doom 3 1107
Doom 3 Walkthrough - Doom 3 1107

Search the area for supplies, including shells and these grenades.

Doom 3 Walkthrough - Doom 3 1108
Doom 3 Walkthrough - Doom 3 1108

A medkit is to the left. Shells and a clip are to the right.

Doom 3 Walkthrough - Doom 3 1109
Doom 3 Walkthrough - Doom 3 1109

Don't miss the armor vest behind this crate.

Doom 3 Walkthrough - Doom 3 1110
Doom 3 Walkthrough - Doom 3 1110

Ride this lift up to level 3.

Doom 3 Walkthrough - Doom 3 1111
Doom 3 Walkthrough - Doom 3 1111

Cherubs and an Imp attack as you exit the lift. Use your Soul Cube to recover health if you need to.

Doom 3 Walkthrough - Doom 3 1112
Doom 3 Walkthrough - Doom 3 1112

A Commando attacks through the door ahead. Armor is to the right. Clips, shells and an Imp are to the left. Continue through the door ahead.

Doom 3 Walkthrough - Doom 3 1113
Doom 3 Walkthrough - Doom 3 1113

Imps attack from either side as you step down the corridor. A Commando is straight ahead.

Doom 3 Walkthrough - Doom 3 1114
Doom 3 Walkthrough - Doom 3 1114

Shells, an ammo belt and cells are to the right. Ready your plasma gun before picking up the armor on the floor.

Doom 3 Walkthrough - Doom 3 1115
Doom 3 Walkthrough - Doom 3 1115

Two Imps attack once you pick up the armor, followed by Cherubs.

Doom 3 Walkthrough - Doom 3 1116
Doom 3 Walkthrough - Doom 3 1116

Continue through another door and this Imp attacks.

Doom 3 Walkthrough - Doom 3 1117
Doom 3 Walkthrough - Doom 3 1117

Open cabinet 669 with code 468. Armor, grenades and cells are inside.

Doom 3 Walkthrough - Doom 3 1118
Doom 3 Walkthrough - Doom 3 1118

Ready your plasma gun before retrieving the replacement door panel on the right. An Imp and Trites immediately attack.

Doom 3 Walkthrough - Doom 3 1119
Doom 3 Walkthrough - Doom 3 1119

Start backtracking to the lift. An Archvile and Cherubs attempt to block your path.

Doom 3 Walkthrough - Doom 3 1120
Doom 3 Walkthrough - Doom 3 1120

Ride the lift back down to level 2.

Doom 3 Walkthrough - Doom 3 1121
Doom 3 Walkthrough - Doom 3 1121

A large herd of Wraiths attacks as you exit the lift.

Doom 3 Walkthrough - Doom 3 1122
Doom 3 Walkthrough - Doom 3 1122

Return to the other lift and ride it back down to level 1.

Doom 3 Walkthrough - Doom 3 1123
Doom 3 Walkthrough - Doom 3 1123

Keep left off the lift and backtrack across these panels.

Doom 3 Walkthrough - Doom 3 1124
Doom 3 Walkthrough - Doom 3 1124

Return to this door and replace the missing panel. Continue through the door.

Doom 3 Walkthrough - Doom 3 1125
Doom 3 Walkthrough - Doom 3 1125

A medkit and a Trite are through the door on the left. These two Imps are waiting through the door on the right.

Doom 3 Walkthrough - Doom 3 1126
Doom 3 Walkthrough - Doom 3 1126

Ride this lift down to sub-level 1, Main CPU.

Doom 3 Walkthrough - Doom 3 1127
Doom 3 Walkthrough - Doom 3 1127

Campbell warns you with his dying breath that Sarge has his gun, the BFG. Proceed to the bay door ahead.

Doom 3 Walkthrough - Doom 3 1128
Doom 3 Walkthrough - Doom 3 1128

Activate the panel to finish the level.

More Doom 3 Walkthroughs

This Doom 3 walkthrough is divided into 27 total pages.

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