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Half-Life: Opposing Force Hints
How do I break through the locked metal door in the lobby?
1 of 4: If you still have him, the engineer is the only one who can break down the door.
2 of 4: Draw him near the door and he will break through it.
3 of 4: The door opens up into a cave that you can move around. A small security outpost has some extra ammo and battery power.
4 of 4: If you need even more battery power, climb up the rock formations until you can walk around the roof of the lobby. There is a battery up there as well.
