Orbital Space Station

The UNN Orbital Space Station is a transfer facility in System Shock 2, acting as an intermediary outpost between the Earth's Ramsey Recruitment Center, the training installations available during the three-year (originally four-year) tour of duty, and the final destination (Von Braun and UNN Rickenbacker).

Easter egg
During the third year of tour of duty, go towards the blue window by the mission post and shuttles. There, you will see a Protocol Droid walk into view and begin doing the Macarena, a popular dance move from the 90s.