Lieutenant Lehmkuhl (pronounced leh mc ull) appeared in the Invasion of Foy level. He hops the fence with the tanks, so he may be part of the 11th Armored. He tells the player about how the tanks are going one by one, and then he is hit by a sniper. No one talks about him throughout the game.

He was most likely named after the developer, Corky Lehmkuhl.

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