Have you tried turning on the "google earth community" layer. There are so-called labels for many of the silos. Try
N34.633239 W120.614149
for what is claimed is a Titan launch site.
Google Earth Community layer information is often wrong.
It's been my experience the easiest way to get a map of a base is via environmental reports. Google around the VBG website, maybe Army Corp of
Engineers, CalOSHA, etc. Also check archive.org since they often delete the environmental reports once the project is approved.
You could try Brian Webb www.spacearchive.info...
He knows the base very well, but most of these guys that have inside contacts don't want to risk those contacts by revealing hard to get information.
I have photos of two missile launches from VBG. Neither came out well. This one was totally by accident: www.lazygranch.com...
This one is a special trip I made to Santa Ynez peak to photograph a launch and the *&^** sun was right in the shot. www.lazygranch.com...