Hogwarts: Harry Potter and the Glock 18

Glock has a tattoo on his head and is a social person by birth.
When the wizard no longer holds the stick,
when the Muggle clicks the technology tree crookedly.
The muzzle of the gun should be shining with magic!
The burst of magic power replaced the smoke, but
the shock of the roar did not diminish at all.
Extraordinary power should never be silent!
Welcome to Hogwarts School of Magical Warfare.
This book is faithful to the original work, and not a single word has been altered – A.K. Rowling