J-Lab Laboratory
Area and route
J-Lab has B1 and B2 floors. Both include power-control and stairwell labels, so matching names do not mean the same room. operating both floors’ switches, returning to northern B1 for Roadblock, then taking the level-three credential back to Zone Zero for the Storm Zone route. Colored room cards are separate from single-use credentials.
Named map markers
| Scene | Name | Markers with this name |
|---|---|---|
| B1 | Experiment area | 1 |
| B1 | Stairwell | 2 |
| B1 | Power control area | 1 |
| B1 | Area 9 office | 1 |
| B2 | Stairwell | 2 |
| B2 | Strange experiment area | 1 |
| B2 | Power control area | 1 |
Counts describe named labels on the map, not loot quantities, enemy counts or spawn probabilities.