Private Cook is a member of the player's recon team in the opening cinematic for "Semper Fi" in Call of Duty: World at War. He is seen tied to a post, being beaten by a Japanese soldier outside the hut. After Miller has been rescued, he is seen escaping in a boat with PFC Allen and Gallagher.

He is later seen injured and being carried away on a stretcher in the mission "Blowtorch and Corkscrew".

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