Mod:Fallout: The Frontier/Breaking the Cycle

After exhausting all of the options of convincing the Domina and after you have completed Head Games you can proceed with this quest.

Quick Walkthrough (Truce with NCR Exiles)

 * Speak to Domina Weaver
 * Visit Goose Hollow School House and Post Exchange, it is recommended to bring America
 * Return to Domina Weaver
 * Exhaust the conversation choices and it will end with "You may have exhausted all of your options of convincing Domina for now. Perhaps time will bring further answers."
 * Continue on with the Crusader's Quests, completing all tasks by Hector Clements, Mollie Callaghan and Charlene Yong.
 * Upon receiving a Pip Boy text message from Mollie about an emergency, speak to Mollie and follow her to the patient. Quest Head Games will begin.
 * Successfully complete Head Games, talk to The Domina again.
 * Speak to Blackthorne in Camp Phoenix about a ceasefire
 * Blackthorne will agree to meet near the Skidds.
 * Speak to Domina Weaver when you are ready to commence the final battle.
 * Take down Rancor and the Legate.