From Halopedia, the Halo wiki
February 23, 2525
Humnum was an Unggoy who served the Covenant military aboard Rapid Conversion.
Humnum was originally one of the sixty Unggoy on the Covenant cruiser Rapid Conversion. In 2525, he was stationed on the Tiara over Harvest, during the First Battle of Harvest. He was one of the sixteen Unggoy defending Deacon Dadab's barricades on the Tiara.
Of these Unggoy, only Dadab, Bapap, Fup, and Humnum survived the firefight with Staff Sergeant Avery Johnson and Harvest's Colonial Militia. However, once the humans charged, He was killed by Johnson after he attempted to kill Dass. Humnum's methane tank was later taken from his corpse and given to Dadab by Tartarus.