Borderlands Crossover.

Set 14 years after the events of Borderlands 3. The Alcatraz, a space transport ship carrying trillions of the most wanted criminals from every planet and moon in the solar system with the sole objective to dump them all on a distant and supposedly uninhabited planet, named Canayona, far from the other colonized planets. One of which was an Ex-Vault Hunter, who basically said 'fuck it' after the last Vault was found and looted and started doing whatever the hell he pleased or was paid to do before he was captured.

The ship arrived at a planet but found out that they were at the wrong one due to a minor malfunction from an outdated mapping system. But before they could leave The Alcatraz's engines began to both, run low on fuel and had minor damage that would cripple the ship in the long run, even worse with the hundreds, almost million, of prisoners on board. They had no other option but to have the prisoners, vehicles, and the armory containers jettisoned onto the planet and leave for repairs and refueling. The containers landed on the planet and The Alcatraz left. Where they began to wreak havoc and completely unsupervised, some even forming gangs and traveling out of the desert to where there were living beings.

The planet was called, Equestria, which was inhabited by many different species. All of which have never known true war like the ones these criminals have started and ended. Meanwhile, the Ex-Vault Hunter's special made containment pod was sent off course from some psychos using their container like a bumper car. Landing in Sweet Apple Acres. Now the Equestrians have someone who was used to bloodshed on a massive scale, but the question is, are they willing to let him do it?