Stefania's Facility Lab/Layout

In Stefania's laboratory, which had proper levels B1F-B3F were primarily designed to supply the laboratory with crystal energy. as Level B1F contained the main power room, as well as supplying a computer A.I with access to a self-destruct mechanism that would set off strategically placed bombs that would destroy the lab if breached. as Level B2F consisted of the actual machinery for the power room and was normally steam-filled. Level B3F consisted of a smelting room and an observation platform above a large, open pool vat of molten substance.
as for Levels B4F-B7F would house the complex's actual research labs. unlike the above floors, which were linked by elevators, these levels had to be reached through ladders. Level B4F was the first of the main laboratory levels, hence the level for the railway elevator. A security office was located against the platform, with another door leading to the main shaft, the center of the underground complex, where power to the research labs could be turned on and off. This shaft led to two wings - the East Area and West Area. The West Area led to researcher dormitories and a duct for B5F access. The East Area meanwhile consisted of rooms for various research projects: an operating room; a low-temperature lab and a culturing room.
Level B5F was the site of the P-12A laboratory where research was performed, with a security office placed close by to keep Dr. Stefania's research safe. The east side of this floor included a storage room with elevator access to level B8F and was likely where supplies were delivered.
B6F did not have any laboratories, instead of being uncomplicated in its design. Its main use was as a second level for the security room, linked to the upper room by a ladder. On the east side was a break room to allow researchers to socialize. Several vending machines and a television were located on this wing to better serve its own purpose.
B7F, the final level for the research labs, consisted of chemical storage rooms.
at very bottom level of the facility was B8F. This level was the site of a second platform, with its own train. This area was used for the covert shipment of materials in and out of Paris, France.