Once the whole prisoner issue is addressed, you can set Chagas up here as the tribe's gunsmith. He'd rather be leader, but this is a position of power and respect that a DiploBoy can talk him into.
Combat Boy - Bully Chagas into giving up on being a leader and take the tech role.
Science Boy - Show Chagas a few tricks, and maybe bribe him with a nice weapon into helping out in this manner.
DiploBoy - Talk Chagas into it.
Stealth Boy - Sneak into Chagas home and plant stuff there that makes him look too weak to be a leader, which makes it easier to talk him into being the craftsman.
Chagas is skilled at gunsmithing. He wants to lead the Blackfoots but the tribe might be better off with him as gunsmith.
2
After a few threats, Chagas gave up on his designs of being leader of the Blackfoots and started to settle in as their gunsmith.
3
I showed Chagas a few tricks in the art of gunsmithing, and now he's really enthused about doing that sort of work. It looks like he's given up on wanting to be leader of the Blackfoots.
4
After a long talk with Chagas, I got him to realize the tribe would be better off with him as the gunsmith instead of its leader
5
I planted some evidence in Chagas' home so he'd look weak and unsuitable as a leader. Properly shamed, he's settled for being the tribe's gunsmith.