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DOOM 3 Hints
I can't get through the locked door in Delta Entryway!
1 of 4: Have you approached it to see if anything interesting happens?
2 of 4: Some unseen force is nice enough to throw a corpse through a large window next to the door, breaking it.
3 of 4: Now you can go through that window.
4 of 4: NOTE: The door is usable after you restore the Data Linker to the Delta Systems Control room.
