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DOOM 3 Hints
Notes and Extras
1 of 2: There's a security robot lounging around in one corner of the Entrance area. Approach it to activate it so it'll escort you to Power Core Access, rat-tat-tatting the enemies you encounter along the way.
2 of 2: On the lower floor of Power Core Access, there's a hard-to-find ladder in a corner a ways past the nonfunctional lift. You have to jump over a rail to get to it. It leads down to a ledge with some security armor and ammo, but using it is a very dangerous maneuver since falling to the floor will mean instant death. Do at your own risk!