Stop Gizmo

Stop Gizmo is a side quest in Fallout.

Detailed walkthrough
To complete this quest, the Vault Dweller first needs to get Gizmo's confession. Once delivered, Killian Darkwater will offer them the option to join him in taking out Gizmo. Should the Vault Dweller accept, they will be directed to Lars. Once Lars has been spoken to, the Vault Dweller will be immediately transported to Gizmo's office, together with Killian and Lars.

Gizmo and his bodyguard Izo will immediately attack, so the Vault Dweller is given no choice but to battle them and kill Gizmo. Once they have been killed, the unique 9mm Mauser can be found on Gizmo's corpse.

Rewards

 * 600 XP
 * 500 bottle caps
 * +3 Reputation