The Outlaws of Wild West Exodus are very character based. This is designed to play to the story of the Outlaws, where nobody can really be trusted.
The hired hands are intended to be whatever drifters, thieves or criminals that they can find who can carry a gun. These Bosses, Underbosses, and Sidekicks tend to pack a real punch, and don't offer any of the "buffs" that you would find in more highly trained factions such as Lawmen, Union or Holy Orders.
I didn't realize how prominent a point this was until I read the novels, and then started to examine all the individual unit profiles.
There are many ways where differences are established between factions, and this one is a very interesting an unique approach.