UNSC Code Three-Nine-Two
From Halopedia, the Halo wiki
Code Three-Nine-Two is a United Nations Space Command code term brandished by Special Warfare teams to ignore hails from other forces due to a higher-priority mission. Dr. Halsey used this code when Admiral Whitcomb hailed her over Eridanus Secundus when she was fleeing in the Beatrice. The Admiral took it personally, interpreting it as Dr. Halsey had "just told me to go to hell." [1]
Sources
- ^ Halo: First Strike pg.278