The unnamed UN soldier is a troop who is injured while fighting Red Section and ZP forces in Bosnia.
Gabe Logan finds him brought into a tent by Richard Kress, who asks the former to get medical instruments which the latter needs to tend to some injuries. Gabe leaves Janzen in Kress' care along with the unnamed soldier. When Logan finds the cabinet, it is empty, and Teresa contacts him, telling him she's looked at the computer contents. She thinks Kress might be a mole and Gabe confirms this when a squad of ZP soldiers is sent in to assault him. He fights through the wave and returns to the tent, where he finds the soldier and Janzen both dead, while Kress has disappeared.