He just stopped there. Didn't move an Inch.

44016, a Fowler engine in the War Department, was stopped by a German set of troops while taking ammunitions and troops to a nearby camp. They told him to surrender his train or face consequences. His drivers were hesitant about it, but 44016 just stood there and didn't move or say anything. Soon, Allied Forces troops came and "got rid" of the German troops, ending the standoff. His drivers nicknamed him Rocky, because he stood there like a rock while facing danger.