I actualy think to plot elements of this Submachine are put aside more inderecticaly than in others, mainly due the lack of documents about plot, as the ones sent by Mur only tells us about our objectives.
Other thing I was thinking, the observation room, player thinks it has been installed in 50's, but its posible that 4th Dynasty's was just very advanced for its period, and they could access this kind of technology back in 1906, once again, this point works as link to Covert Front Universe.
Also, Mateusz said the resamblance between the air pressure puzzles in Sub1 and Sub5 was purely intentional, what if it has a real meaning to the structure of the Submachines? As far we know, Basement locations are all generated, so what if they mimic the puzzles and structures of that of the Root?
