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DOOM 3 Hints
Now that I'm in the Old Comm Center, how do I find the missing scientist?
1 of 5: After picking up the armor shards and medkits in the Old Comm Storage area near the airlock (some of which are up on a shelf you have to jump onto using crates), use the elevator.
2 of 5: Touch the panel next to it to call the elevator to your level.
3 of 5: Then click on "2 - Communications" on the elevator panel to get to the upper floor.
4 of 5: Go through the door to Old Comm Main to trigger a cut scene in which you find the missing scientist and the "main event" happens that starts the whole hellish chain reaction that makes this into a real DOOM game.
5 of 5: NOTE: The scientist is transformed into a zombie soon after the hellish event happens, so be ready with your pistol. (Or shoot the scientist before he's transformed so that you use fewer bullets on him.)