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[Halo] Was Chief the only SPARTAN known as 'Demon' by the Covenant? Were there other SPARTANs that held such titles within the Covenant military?

Specifically speaking, the Arbiter refers to Chief as 'Demon' throughout the events that led up to the discovery of the Ark, and the rest of the Covenant refers to him as such every time he faces them in combat. How widespread was this, and exactly what led to the title?
gpt
Demon was a title for all Spartans, but eventually it came to refer specifically to the Chief due to his higher proficiency in the war effort and the fact that, during the course of the Halo events and the end of the Human Covenant War, the Chief was the only truly operational Spartan taking an active role in the war.

As for why the term demon became used, it's not really surprising.  The Covenant's war was founded on the belief that humans were Heratics, and opposed to the gods.  So when a special breed of human emerges from the fog, in armor superior to that of the Sangheili and turned the tides of battle, utterly out classing the Covenant in ground engagements, it wasn't hard for them to imagine them as such.