Jeff Imel took over from the  late Bill McMasters running BMC toys.  He's clearly very busy as a small entrepeneur, however he does keep a blog with updates on BMC projects; https://bmctoys.com/blogs/news/bmc-toys-plastic-army-women-project-update-11

In this one you get a good look at a modern toy injection mold system.   check out those water cooling hoses!  this is a rapid full production mold for the BMC female modern soldiers, I'm lucky to have one set of them in my collection.