H4 Haneul Nuclear Reactor transformer yard
- Door
- Maintenance room under the transformer yard, southwest of Reactor 01.
- Video route
- Drive through the rail tunnel into the yard west of the reactor, go into the underground entrance with the red warning light and follow the dark corridor. Bring a gas mask. Player report, not checked by the guides.
- Inside
- Lockers and crates.
- Get the key
- Found as loot