At the start of Equestria's History

Humanity once prospered, building huge and grand structures, a huge part of cultural sharing and had the strongest fighting force in Equestria. They openly traded with every race, but if one was in any way aggressive... The Brass Inquisitors were mobilised and sent to 'persuade' them to resume neutrality, if they refused then they would be destroyed.

Soon after Nightmare Moon's banishment to the moon, humanity vanished. Without a trace the most advanced race disappeared, leaving everything. Their tools, buildings, books, food supplies and anything that they were doing was left where it was last. Strangely the human military, the Brass Inquisitors didn't disappear, they remained. Something changed within these once proud and merciful knights, they slaughtered the search party that was investigating the disappearance of the humans. A few watched these human knights for a while, then they silently scattered to their last strongholds, for unknown reasons.

A number of Brass Knights are wandering Equestria nowadays, attacking anything that isn't a Brass Inquisitor. Most ponies have no idea that they exist and the ones that do are either the Royal Sisters, old timers or ponies that are far too nosy. So what happens when a Brass Knight is awoken from his rest by a curious Purple Unicorn, quite close to Ponyville?

Hasbro owns MLP
This story is concentrates mostly on fighting, just a heads up.
Teen Tag is for gore and for language
This story is a rewrite of Loyalty in Brass, but I'm still going to keep the original. Just so you curious readers can read both.
Enjoy the Story!