I'd imagine he would spend those training sessions with his pistol, learning to use it effectively, since his semblance makes him a wizard with the Unsubtle and the tank doesn't have a lot of room for 'training' aside from target practice maybe.  It wouldn't matter so much in training sessions that he might often come out worse for wear, since he'd be learning nonetheless, and losing is often more character-building than winning.

@Sir, Aurellius is quite a unique character.  Wouldn't you believe, I chanced upon the actual deviantart page for the Ascalon earlier today.  Anyway, I like him a lot, and he's accepted.  Get on dat document.

@Prince, The bad dreams knives are very nice, totally approved.  As for Zeus, though...are you familiar with the word 'Ampere?'