Hungry bandits are individuals or little groups (max 10 people) who have gone to the wild wandering and robbing people. They don't have organized faction named hungry bandits. They are just bandits who happen to be hungry 'cause they are poor.
So... You can't be friends with hungry bandits. It were good if every hungry bandit group would attack everyone and it shouldn't be possible to improve relations with hungry bandits. It were good if hungry bandit groups would attack other hungry bandit groups but I don't know if that is possible to make. (Bandits doesn't care who are those they are attacking, they are hungry and they need to rob to eat, it doesn't matter if it's some noble or another bandit who dies.)
Dust bandits are different. They call themselves Dust bandits. It is organized crime. They have head of faction and they recognize other Dust bandits to the same group.
Just little thought about realism
