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DOOM 3 Hints
How can I get through the non-working door in Energy Processing?
1 of 4: Its locking panel is green, so you should be able to get through.
2 of 4: However, if you check the panel more closely, you'll see an error message flashing on it in red letters.
3 of 4: Since you can't fix it and the guys in the room past the door don't seem at all concerned that you can't reach them, I guess you'll have to wait until later.
4 of 4: After you find the missing scientist and the whole place falls to pieces, you'll end up going through this door from the other side on your way back to the elevator at the beginning of the level.
