From Halopedia, the Halo wiki
Kalcuno was present during the Installation 07 conflict, during which he served at the Redoubt of Sundering under the command of Kaidon Thav 'Sebarim. The Kaidon rebuked Kalcuno for returning from patrols without human captives, but with a fully belly, having killed and eaten UNSC survivors despite Escharum's orders to capture all humans. 'Sebarium threatened to send Kalcuno to Chak 'Lok's Tower in the humans' stead if the Chieftain continued to do so.
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