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In Rooms 610-617 (just Room 610 in the HD Renovation), another GL Labs area can be found with a futuristic look, albeit chronologically older, equipped with technology such as ventilation and holographic screens for vertical doors.
As the player advances throughout the facility, they will find some notes in the form of holograms written by a former GL Labs Assistant who has been assigned to retrieve some "things" at the request of Spooky with the members of his team as company. The notes reveal that the old lab was most likely constructed with a much larger budget, but done carelessly, as some equipment is barely functional. The power still has the potential to work, but will go out even after a generator is activated.
The lab seems to have no power, and the player must interact with spare generators found in various locations to get the doors and lights back online to progress. The player ends up travelling around until they get to Room 614, where the power runs out and to continue, they must travel through the ventilation system.
After entering and exiting numerous air ducts, the player will find themselves in Room 617, where there is a generator to the left of the room, and a note in the middle of a blood puddle. That note tells the player how to survive the new Specimen 10. Using the generator will spawn the old Specimen 10, which is, in fact, the host for new Specimen 10. The parasite will erupt from the old one's head and start chasing the player for the first time.