"Ah, that's a very good question," Gen smiled brightly at him. "And we haven't been given much information? But it seems pretty obvious it has to do with the missions we're assigned."

He's wearing different clothes that he had gotten from the spider, so he needed to share, "I'm on the Orange team, my friend. Other people on that team ... well, to be honest, most of them are far smarter than I am. It seems that we're given missions that don't require a lot of fighting. Which is good, because, ah. I'm best at running away from battle, it does not agree with me. If they're going to put me to work, I'd even prefer just gathering random supplies than being threatened with weapons."

His head tilted a little. "The other colors do a lot more fighting ... though from the limited amount I've seen - a single mission, so take this with a grain of salt? - the red team does the most. There aren't a lot of people on that team on the train, so it's hard to say exactly what they all share."

That's slightly untrue. Based on the mission description, they might all share an aptitude toward violence. But Gen didn't voice that.