Anyone who's spent more than a week locked away in an 18th Century French Prison will agree the experience gives you plenty of time on your hands. New prisoners might take the Arts and Crafts route of Marquis de Sade and produce some of the most bizarre and twistedly erotic poetry humankind has ever had the horror to read. Or, maybe they'll use all that time to practice sword fighting with a quizzically British sounding man.
Arno, the star of the upcoming Assassin's Creed Unity, took advantage of his incarceration to learn some wicked-sick fencing maneuvers, which you can check out from this in-game cinematic.
Sure, this doesn't show actual gameplay, but the cinematics are from in-game cutscenes. And boy if those character models don't look great!
If we're subject to this kind of detail in the actual open world of Assassin's Creed, where there are just under a trillion characters on screen at once, I'll be pretty impressed.