A story that can be told by the only remaining living ponies

In a tavern on a stormy autumn night, a group of youngster are talking about joining The Imperial Army.
An old soldier overhears and decides to regail them with a story from his own time serving in Her Highness's army.
The battle at The Weeping Hills during the Zebraian Revolt, where he saw The Solar Empire's most elite force, The Celestial Berserkers.

Want to thank Jyc Row, IbeConCept and Francis Vace for making the amazing song Celestial Berserkers which along with it's astonishing artwork by Dormin-Kanna inspired me to write this fanfic.
Go give both the song and the artwork a look would ya!
Song: https://www.youtube.com/watch?v=7DBnHHI-2oI
Artwork: http://dormin-kanna.deviantart.com/art/Celestial-Berserker-639110276