Mike I Checked and followed the Tutorial, and sure enough I couldn't Find Scenery Key frame Animation or Tick 18. Don't know what is up?

Hi all- I am looking for anyone that might know anything about Iranian Air Force Bases. In Particular I need to know about the Hardened Aircraft Shelters. If anyone has any pics or just can describe them to me, it would be a great help. I would Particularly like to know if the Shelters have doors or...