Playable on: E2M1
This "state-of-the-art" training facility was to serve as a welcoming station for new arrivals on Deimos, but the project was canceled long before the demons arrived. It has since fallen into decay, and its abandoned status led to it being used as a staging area for the demon invaders.
Its current state is unknown, and it is possible that portions of the station have been converted for use by the demons. Stay alert.