From Halopedia, the Halo wiki
Wick was a Colonial Militia soldier on Harvest in 2525. He was killed along with two other members of Staff Sergeant Avery J. Johnson's fireteam during the UNSC assault on the Covenant-held Tiara.
Wick's father owned Harvest's biggest import and export concern, which Wick treated with disdain. As a result, Wick wanted to leave Harvest for a core-world career, which with he thought militia service would boost the probability of getting the job.
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