From Halopedia, the Halo wiki
Jato 'Ratum was part of a mining expedition during the Banished's operations on Installation 00 in 2559. Although he had advised caution about mining around the old ship wreckages from the war, the Jiralhanae who lead the expedition dismissed any worries about their surroundings. Upon arriving at their designated site, 'Ratum stood guard while the Jiralhanae ordered his Unggoy to prepare the mining equipment. Just as they managed to breach the surface, 'Ratum cried out a warning after sensing an oncoming danger and immediately dove for cover. The expedition team was then pummeled by salvo after salvo of artillery fire from a large, unseen attacker. Wounded and disoriented from the initial blast, 'Ratum lost consciousness just as he heard the Jiralhanae leader perish in another blast. 'Ratum awoke later to find their attacker had disappeared and that he was the sole survivor of the mining expedition.
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