Anders Breivik did have some esoteric ideas. His secret order may have only existed on paper.
Fundamentalism
Remembering the Utøya Massacre: Breivik, Christianity, and Islam
The terrorist was not a conservative Christian. His real religion was Islamophobia.
Remembering the Utøya Massacre: What “Religious” Ideas Motivated Breivik?
After ten years from the Utøya Massacre, Anders Behring Breivik, the perpetrator, is still called by some a “Christian fundamentalist.” The label is misleading.