A documentary about the construction of a subterranean rebel base on an ice planet:-

http://en.wikipedia.org/wiki/Project_Iceworm

That was awesome. The music and uniforms helped make it feel even more like Star Wars, and the voice of Capt. Barnett (at about 24:30) sounds like a dead-ringer for the briefing officer from Star Wars: Rogue Squadron .

With how many facilities were built during the Cold War, I imagine there may be more videos scattered about that cover desert or even underwater/coastal bases.

https://medium.com/war-is-boring/the-navys-secret-undersea-lair-2d6b26e2b3b5

http://www.dailymail.co.uk/news/article-563405/Satellite-pictures-reveal-massive-Chinese-nuclear-submarine-base-says-Pentagon.html

https://www.google.com/search?q=soviet+sub+base&tbm=isch&tbo=u&source=univ&sa=X&ei=7AqnU9LxMsyYyATsyICoAg&ved=0CBwQsAQ&biw=1600&bih=775

That Camp Century video is wonderful. Love how many of the troops are hitting the death sticks.