This is based on the movie Fury.

Applejack as Wardaddy (But in the story I'll call her Warmommy, since AJ is a mare.)
Sandbar as Norman
Smolder as Grady Travis
Ocellus as "Bible"
Spike as Gordo

6 years after World War II broke out, the Allies (Hippogriffs, Ponies, Changelings, Yaks, Dragons) are making their final push in the Griffonian theater. A battle-hardened Army sergeant named Applejack "Warmommy" , leading a Sherman tank and a five-creatures crew, undertakes a deadly mission behind enemy lines. Hopelessly outnumbered, outgunned and saddled with an inexperienced soldier in their midst, Warmommy and her crew face overwhelming odds as they move to strike at the heart of Nazi Griffonia.

Jacob Willson, a 25 years old RAF pilot, he was battling over Great Britain when suddenly his plane got shot down. Instead of landing in the ocean, he landed in Equestria. He's not the only human. The Nazis also followed him! Now Jacob must team up with the creatures in this world and save Equestria.