From Halopedia, the Halo wiki
File:CHELAN_201903012 is part of Director Schaefer's "content series" in ONI Section Two's public awareness campaign regarding the UNSC's role in colonial security. Aimed at educating UEG citizens on the history, evolution, and application of the Spartan Program.
This file goes over the Spartans of NOBLE Team and their role in the Battle of Fumirole.
- This file is the in-universe name of the "Noble Endeavors" video.
- The filename is a reference to Halo: Reachs launch in Halo: The Master Chief Collection with the number "201903012" referring to the game's launch date of December 3, 2019. The CHELAN part of the name refers to the Chelan app that requests permission when the player logs into Xbox Live through Steam, itself a reference to the Chelan and many place names throughout the U.S. state of Washington.