From Halopedia, the Halo wiki
In February 2558, Zurenia and his team were shot down by Covenant forces while searching for signal data that was discovered during the attack on Galileo Base. Zurenia and some of his teammates, including Scott Macrae, survived the crash and were later assisted by Fireteam Crimson, who were sent to rescue them. Unfortunately, he and his team were killed by Covenant reinforcements before proper extraction could be sent by Infinity, leaving Crimson to finish the other team's mission.
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