During a war between equestria, and an unknown enemy, a small underground facility is found. Not wanting to take any chances, Celestia and Luna sent in 221, the elite of the Unicorps. With over 400 confirmed kills per member, and a casualty rating of 0%, they're the best of the best.

Or at least, they were the best.

Rated M for violence, gore, and strong language.

As usual, feedback is welcomed.