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DOOM 3 Hints
How can I get through the blood-splattered door in Service Room 1B?
1 of 5: Have you tried walking right up to it?
2 of 5: Interesting demon that pops through, huh?
3 of 5: However, the door seals and can't be opened.
4 of 5: Look around for another means of egress.
5 of 5: Exploring the lower floor will reveal a maintenance crawlway in the far corner. Crouch down and enter it.