https://www.thedrive.com/the-war-zone/28292/latest-video-of-irans-bond-villain-like-ballistic-missile-lairs-shows-key-new-detail
The video, which was posted by Iranian media just days ago, gives us a higher-definition look at some of the areas in one of the country's missile caverns. In particular, it shows a blast door and drawbridge mechanism that opens and closes when passing from one section of the cavern to another.