Warhammer 40K based fanfic
Before the Great war for terra at the height of the empire of ponykind
The Dark kights chapter of the great and fabled Adeptus Astertes fight the eternal Dark Crusade on the outer reaches of the empire against the xeno threat. I don't own the photo it's awesome tho.
-Belove

Also not related to the expansion pack of warhammer 40k dawn of war just a unlucky coincidence.