In a last-ditch attempt to thwart us the crazy bastards have triggered the arming sequence of their arsenal of ICBMs! Thankfully, we have gained access to the underground control facility via an elevator inside the main research building. You MUST get an engineer to the two control stations before it’s too late!
You also have a secondary objective. According to our informant within the Soviet ranks, there are three very prominent scientists being held hostage here:
Albert Einstein, Wernher Von Braun and
J. Robert Oppenheimer.
After you've dealt with the immediate threat, find them and escort them back the same way you came in.