disc-shaped “eightgon,”

This is like the human used craft that Michael Herrera says he saw in the Philippines.
#357797

People are connecting Barber to this work-in-progress fiction book with two chapters:
https://drstevengreer.com/sentinels-of-ether/

"While the story is fiction, it accurately describes actual events. This account illustrates the urgent need for Disclosure and to get these criminal rogue activities under constitutional control."

I read the first chapter, both this and Herrera's stories are about US military personnel stumbling upon or getting ambushed by some sort of PMC's with advanced tech.