Vallen was a Human and an old Colonial Militia soldier who fought in the Battle of Harvest.[1] While defending the generators and Mack's A.I. core, he, Byrne, Habel and Jepsen where threathened to be ran over by a Brute Chopper. Though the other three made it through the safety of Mack's core building, Vallen was chopped just a few meters before the door of the building.

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