It's true that during his days in the Mojave Wasteland, the man known as Courier Six, or to his close friends, Mark Rileigh, has seen many strange things, battled countless numbers of deadly monsters in both man and beast, and above all...brought peace to the Mojave by ending the Legion and securing New Vegas for his coalition of factions, supported by the NCR.

However, it seems his days of adventure aren't over yet, as a malfunction with the Big MT teleporter satellite sends him far away from Earth, to the mystic, magical land of Equestria. However, the Courier soon learns that some scoundrel there has framed him for a heinous crime, and most of the locals aren't exactly interested in learning his side of the story.

Now on the run, he must gather what allies he can, clear his name, and get to the bottom of the mystery that brought him to this realm. Because the Wasteland, and now Equestria, have debts to settle with Six. And if this last journey is the end of him...well, it won't be much of story then, won't it?
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Fallout: New Vegas crossover, set in season 4, after Tirek's defeat, and after the events of all the DLCs for New Vegas.
A Sheet of Courier Six's equipment can be found here.