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DOOM 3 Hints

How do I open the locked door near the Security Office in Comm Eng. Unit 2?

  • 1 of 9: You picked up Ben Wolfe's and Seamus Blake's PDAs on the long way here, didn't you?
  • 2 of 9: Well, they're not what you need, and there are no more PDAs to be found.
  • 3 of 9: Do you remember how you opened the locked door to Maintenance way back in the first Mars City level?
  • 4 of 9: You had a security robot do it for you.
  • 5 of 9: Search the Security Office for a bot.
  • 6 of 9: There's a panel that says "Activate Sentry" on it. Why not press that and see what happens?
  • 7 of 9: A sentry bot will be issued to you, and will take off down the walkway.
  • 8 of 9: It'll unlock that door (and a few more further on) for you and help you shoot down enemies along the way. Don't you just love those things?
  • 9 of 9: NOTE: If your bot gets trashed, return to the Security Office and get another one.