Gargantum

Gargantum was a Jiralhanae Chieftain and Ship Master of the Covenant Frigate Twilight Compunction.

Installation 05
He was aboard his ship during the Battle of Installation 05 and when the Civil War of the Covenant broke out, he took control of several other Jiralhanae-held ships in the Second Fleet of Homogenous Clarity and brought them to attack the Sangheili ships.

His ship, along with the Tenebrous, tried to attack the Sangheili ship, Incorruptible, but the attack was stopped when the Tenebrous was destroyed by the Incorruptible and the Twilight Compunction was attacked and damaged by the Sangheili Carrier Lawgiver.

The Chase
Gargantum's ship, along with the Reverant and another frigate, followed the Incorruptible as it tried to escape. When the ship Bloodied Spirit dropped out of Slipspace nearby, Gargantum hailed it and discovered it was controlled by a team of SPARTANs.

He sent one frigate to attack it, but while his forces were divided, the Revenant was destroyed by the Incorruptible. Gargantum then took his two remaining ships to pursue the Bloodied Spirit.

Trivia

 * Interestingly, his name does not contain the "us" suffix that normally signifies adulthood in Jiralhanae culture. This most likely indicates that Jiralhanae from different areas or tribes may use different suffixes (though "us" is still clearly the most widely used). More evidence of this comes from the Brute Chieftain Parabum, who shares this unusual naming scheme.

List of appearances

 * Halo: Ghosts of Onyx