Oda Mamoru delivers the horror he actually experienced, with his own narration and recreated images. It also includes scenes of exorcism.

Exorcism of Evil Spirits: The True Story of Curses That Really Happened Volume One

Following Oorai's victory over Saunders, the school's next opponent is Anzio. This is an OVA which covers the battle of Oorai versus Anzio, which was not fully shown in the regular anime series.

Girls und Panzer: This Is the Real Anzio Battle!

When the Ministry of Education goes back on its promise to keep Ooarai Girls Academy open, the task of saving the five-mile-long Academy Ship from the wreckers falls to Miho and her barely-seasoned tankery team.