Lighter Than Some

Lighter Than Some was a Huragok onboard the missionary ship Minor Transgression in the Epsilon Indi System, near Harvest, during the 23rd Age of Doubt. Unlike other Huragok, who normally keep to themselves, Lighter Than Some approached Dadab and made a "Hello!" gesture to him repeatedly until he understood, creating the beginning of their friendship. His pacifistic nature eventually led to his death when he was discovered helping the UNSC forces evacuate Harvest.

He was responsible for the creation of the Chopper, inspired by the humans' tractors found on Harvest. They were made with parts of Rapid Conversion and a broken Spirit dropship, originally meant as a peace offering from him and the Covenant to the UNSC. His friend, Dadab feared for both of their lives when he found about the machines, and wanted them destroyed. When the Brutes found out about the creations, Dadab covered up the fact that they were meant as offerings to man by saying they were offensive vehicles that had yet to gain weapon mounts. A hive of Drones that were also on the ship were responsible for turning Lighter Than Some's creation into a weapon of war, adding the two gun emplacements to its sides.

Trivia
Judging from the way Huragok name their "children," the name "Lighter Than Some" would literally mean that the mixture of gases Lighter Than Some's parents used when constructing it caused a slightly higher than normal buoyancy."