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DOOM 3 Hints

Now how do I get past the security door in Energy Processing?

  • 1 of 7: You need to upgrade your security clearance before it'll let you through.
  • 2 of 7: When you try the door, it'll say you need Engineering Team or Underground Security clearance or Ian Sinclair's PDA.
  • 3 of 7: Have you carefully searched all the areas you've been in so far for PDAs?
  • 4 of 7: There's one fairly near the security door.
  • 5 of 7: It's Frank Delahue's PDA, and it's setting on a console in the NW corner of the room.
  • 6 of 7: After Delahue's PDA is "assimilated" into your own, your security clearance will be upgraded to Engineering and you can go through the security door.
  • 7 of 7: EXTRA: There are several little caches of items in this area. To get to one of them, run up the big brown slanty pipe and crouch to enter an alcove. To get to another one, push one of the little yellow UAC containers over to the wall pipe alcove and use it to jump into the alcove. (As for the armor shards on top of the tall crate next to that, it's very hard though possible to jump to that crate from the pipe alcove.)