This post has content warnings for: Spoilers for FF6 and A Soldier's Contingency's Patch, again.

the sprite tells me this is Siegfried, "the greatest swordsman in the world" (self proclaimed) but easily defeated by Sabin and co when they meet on the train. also turns up in the colosseum. no idea why he has a gun
That was his clone. No it's not a joke, or I made that up. That's legit explained the other version of him.
fan theory holds that the one on the train is some kind of impostor and the one you meet in the colosseum is the "real one" so
Nah, Leo is vibing thier. Why? I don't know but I'm going to beat the piss out of him.