I am talking about before the Oucast went their own way. When Lyons started trying to help people over their original mission. The leaders of the Outcast should have tried a coup. Attack those most loyal to Lyons and take control of the Citadel and Optimus Prime themselves. They did not do that. Instead they gathered up what tech they could carry and buggered off in the night. I can't see Western Brotherhood doing that. I see a coup and blood shed. Attempts on Lyon's life. Attacks on the Citadel after their defeat. Outcast doing what they can to take the Maxson kid back, from Lyons.
Remember the whole ordeal in the Mojave? did Hardin stage a coup against McNamara despite disagreeing with how he ran things? No he didn't he tried to get the Elder legally removed. Its likely Casdin tried something similar but when the Elders back west kept Lyon's in charge he eventually decided to just take his followers and leave. Most of the brotherhood was loyal to Elder Lyon's so they'd probably lose an actually coup, and certainly be labeled traitors back home even if they succeded. So really I don't see the basis for Casdin staging a coup against his friend Owyn. Sometimes simply leaving can be more effective in the long term then risking it all in a fight you would probably lose.
You really have "in-game" basis for belief in how the brotherhood would have handled things. Many of the Elders back west actually supported Elder Lyon's new direction which is why he was left in charge and the division in the mojave chapter didn't lead to civil war.
I can see the Outcast hiring mercs like Talon Company to attack Lyons and his patrols.
And just how are the Outcasts suppose to pay Talon Company? with advanced technology? If anything the Outcasts would want to wipe out Talon Company to get at there supply of laser rifles.
Outcast should have also just went along with the Original plan of just closing off Vault 87, but I guess they abandoned that plan because it was making Lyons suffer trying to stop the mutants.
What plan to close off Vault 87? Casdin didn't know the super mutants originated from Vault 87 and neither did Elder Lyons. The birth place of the east coast strain was a mystery until the LW comes back from Raven's Rock. Even the littlelamp lighters didn't know the big yellow freaks were born there.
Weird isn't it, I mean what do the Outcasts have that the Brotherhood don't? Well I it could have been those Alien Power Cells or maybe just the gear in general? I find it scary though that Sarah can just walk up to her Dad and ask for permission to launch an assult, I mean surely when there on duty they are more professional?
People forget the two groups were once family. Casdin was Lyon's friend. Despite the hurt and betrayal he feels its doubtful there eagar to see one another die, or destory themselves in a war. The outcasts make extensive use of robots which Lyon's lacks. I'm guessing Casdin stole the robots.