Truth and Reconciliation's AI
From Halopedia, the Halo wiki
This AI was in brief contact with 343 Guilty Spark, the monitor of Halo Installation 04 during the Battle of Installation 04. It seemed to display an inability to comprehend the monitor's warnings of Flood quarantine, the true purpose of the Halo Array, and his commands to cease aggression toward the Reclaimers on the installation, due to it being programmed to understand the Forerunners only in the Covenant's traditional, religious manner. In fact, it hoped that the Covenant would be wiped out by the Flood, and saw this result as leading to its own "freedom"; this suggests the construct was in a state of rampancy, or else was programmed improperly by its makers. This frustrated the monitor, who proceeded to leave, stating he would later return and have the Covenant construct decommissioned.
The terminal that has this AI in it has the same start-up glitch as the UNSC terminals do. This could be a link to Halo: First Strike, where Ascendant Justice's AI had curious similarities to human smart AI and possessed a strange AI duplication program, leading Cortana to speculate that it was a captured, damaged, subverted and ultimately replicated UNSC AI repurposed by the Covenant.
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