Hall of Shadows: The Signal

In 1989, S.H.A.D.O.W operatives detected a signal originating from somewhere in deep space. Numerous attempts were made to translate and respond to this cryptic transmission, but none were deemed successful. Now, 30 years later, we are getting our reply. An unknown object is currently approaching Earth and is transmitting an entirely new signal. The S.H.A.D.O.W. communication chamber has remained sealed for decades and none of the original staff remain, so it will be up to you and your team to lock onto this signal, translate it, and determine if this approaching object is friend or foe.