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DOOM 3 Hints
It's dark in here! How can I turn on the lights?
1 of 4: Equip your flashlight and use it to find the light switch.
2 of 4: Actually, you're looking for a control panel.
3 of 4: There's a panel on the desk in Alpha Labs Reception, but deal with all the zombies near it first.
4 of 4: Use the panel on the desk to turn on the lights (and unlock the nearby door).