From Halopedia, the Halo wiki
Vomarus participated in the Banished occupation of Installation 07. He was present when a Jiralhanae Captain discovered a few humans hiding in a cleft of a ravine. After interrogation they revealed the location of their base by a Forerunner tower. No other humans were found there, but they did find a Forerunner resonance amplifier, which allowed the Banished relays to project farther and track humans better. Vomarus reported these finding to Chieftain En'Geddon.
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