When Jonathan heard the sound of the mortar, he knew trouble was brewing.
Before joining the Commando Force, Jonathan had served in the Highland Corps and participated in the Expeditionary Force, so he knew the threat artillery posed to light infantry.
Though the Commandos were exceptionally skilled soldiers, they were still just light infantry when faced with artillery fire—even just mortar fire.
Jonathan shouted, "Take cover! Get to solid shelters! Get to solid shelters!"
As he yelled, he grabbed two ammo boxes and rushed down the stairs to take cover inside the Bridgehead Fort.
Inside the Bridgehead Fort was an MG34 machine gun without a tripod, using the same ammunition as the mounted machine gun on the roof.
After Jonathan rushed into the Bridgehead Fort, mortar shells began landing outside the bunker.
Martin and George, a step behind, tumbled down the stairs.
"Damn, you stepped on my face!"