Doom 3 Walkthrough - Central Processing

Doom 3 Walkthrough Screenshot 1. Campbell is seen hunting for Sarge in the opening cutscene.

Doom 3 Walkthrough Screenshot 2. 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 Screenshot 3. 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. Update: Stu G. writes, "Screen Shot 3 - showing ammo locker (access code 571) - to its right is a bank of monitors. The extreme right monitor is a touch screen, controlling the opening of a security locker containing security armor that is located just to the left of the health terminal shown in Screen Shot 4."

Doom 3 Walkthrough Screenshot 4. This Wraith attacks as you leave the room. Note the health terminal on the left.

Doom 3 Walkthrough Screenshot 5. 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 Screenshot 6. 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 Screenshot 7. 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 Screenshot 8. Approach the door to the left and receive this new objective.

Doom 3 Walkthrough Screenshot 9. Press on through this unlocked door.

Doom 3 Walkthrough Screenshot 10. Carefully step across to the door ahead. A voice warns, "Sarge is waiting for you."

Doom 3 Walkthrough Screenshot 11. Imps and Trites attack beyond this door.

Doom 3 Walkthrough Screenshot 12. 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 Screenshot 13. A Commando attacks from the hallway. Defeat him and this second Commando spawns. Note the armor on the floor.

Doom 3 Walkthrough Screenshot 14. Grab the bullets, cells and shells on the right before approaching the desk ahead.

Doom 3 Walkthrough Screenshot 15. Use this panel to open the storage area.

Doom 3 Walkthrough Screenshot 16. Crawl through the open panel here.

Doom 3 Walkthrough Screenshot 17. 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 Screenshot 18. Return to the Sector A door, battling Trites along the way. Enter code 627 to unlock the door.

Doom 3 Walkthrough Screenshot 19. Enter and the corridor transforms itself.

Doom 3 Walkthrough Screenshot 20. Carefully hop along to the opening ahead.

Doom 3 Walkthrough Screenshot 21. Through another door and this Cherub attacks from a secret compartment. More follow.

Doom 3 Walkthrough Screenshot 22. This armor is a trap. Approach it and a secret panel slides open and an Imp attacks.

Doom 3 Walkthrough Screenshot 23. A few steps farther and this Wraith and another Imp attack. This is close quarters so I'd suggest the chainsaw.

Doom 3 Walkthrough Screenshot 24. 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 Screenshot 25. Hop up to the supplies on the right. You'll find rockets, armor and an ammo belt.

Doom 3 Walkthrough Screenshot 26. Don't bother trying to make this impossible jump.

Doom 3 Walkthrough Screenshot 27. Instead, backtrack past more Commandos and Cherubs.

Doom 3 Walkthrough Screenshot 28. Ride this lift up to level 2.

Doom 3 Walkthrough Screenshot 29. 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 Screenshot 30. Ready your chainsaw as you continue into the room. Wraiths attack, followed by Trites.

Doom 3 Walkthrough Screenshot 31. 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 Screenshot 32. Search the area for supplies, including shells and these grenades.

Doom 3 Walkthrough Screenshot 33. A medkit is to the left. Shells and a clip are to the right.

Doom 3 Walkthrough Screenshot 34. Don't miss the armor vest behind this crate.

Doom 3 Walkthrough Screenshot 35. Ride this lift up to level 3.

Doom 3 Walkthrough Screenshot 36. Cherubs and an Imp attack as you exit the lift. Use your Soul Cube to recover health if you need to.

Doom 3 Walkthrough Screenshot 37. 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 Screenshot 38. Imps attack from either side as you step down the corridor. A Commando is straight ahead.

Doom 3 Walkthrough Screenshot 39. 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 Screenshot 40. Two Imps attack once you pick up the armor, followed by Cherubs.

Doom 3 Walkthrough Screenshot 41. Continue through another door and this Imp attacks.

Doom 3 Walkthrough Screenshot 42. Open cabinet 669 with code 468. Armor, grenades and cells are inside.

Doom 3 Walkthrough Screenshot 43. Ready your plasma gun before retrieving the replacement door panel on the right. An Imp and Trites immediately attack.

Doom 3 Walkthrough Screenshot 44. Start backtracking to the lift. An Archvile and Cherubs attempt to block your path.

Doom 3 Walkthrough Screenshot 45. Ride the lift back down to level 2.

Doom 3 Walkthrough Screenshot 46. A large herd of Wraiths attacks as you exit the lift.

Doom 3 Walkthrough Screenshot 47. Return to the other lift and ride it back down to level 1.

Doom 3 Walkthrough Screenshot 48. Keep left off the lift and backtrack across these panels.

Doom 3 Walkthrough Screenshot 49. Return to this door and replace the missing panel. Continue through the door.

Doom 3 Walkthrough Screenshot 50. 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 Screenshot 51. Ride this lift down to sub-level 1, Main CPU.

Doom 3 Walkthrough Screenshot 52. Campbell warns you with his dying breath that Sarge has his gun, the BFG. Proceed to the bay door ahead. Update: Frank writes, "To the left you just see a hole in the ground ... drop in and crawl to the other side to find a stash of goodies to reload yourself."

Doom 3 Walkthrough Screenshot 53. Activate the panel to finish the level.