The Unidentified Mounted Machine Gun Blue Soldier was one of the Blue Soldiers in Battle of the Brick: Built for

The Soldier at his post

Combat - The Movie. He used a mounted machine gun for the battle. When at his gunning station, he was ambushed and his head was decapitated by a Red Soldier, who then showed several of the Blue team the head of their fellow soldier. A Blue Soldier with a rifle then shot the Red Soldier and avenged him.