(Close-up of the 380mm mortar, it is loaded with a round. Notice the holes around the barrel, these were used to ventilate the gasses from the firing of the projectile.)
During the battle for the bridge at Remagen, a total of 7 Sturmtigers were used in the battle. The Sturmtigers were originally tasked with using their howitzers against the bridge itself, though it was discovered that they lacked the accuracy needed to effectively hit the bridge. They were then used as artillery to bombard the town.