Mod:Fallout: New California/Wild Card

Lost Roads is an Ending Quest of the "Kill everyone Playthough" in Fallout: New California.

Detailed Walkthrough
To activate the quest you need to Alos, activacting the quest add a new dialogue with Dr Rossman hologram
 * 1) Kill Juan Marxson-Elsdragon
 * 2) Kill William Silverman
 * 3) Kill Paul DuVille
 * 4) And not joining the Enclave

Your first objective is to "Explore the Pass", it will be updated when you get to Fort Daggerpoint and it will be replaced by "Invade Fort Daggerpoint". After the quest is similar to the NCR one, and you will need to kill Father, Chevy Bragg and John Bragg with the help of Annai Oran.

At the end, you will get the choice to send the missile on the NCR base or the Enclave FEV lab, but it doesn't seem to change the ending.