Stop Gizmo

Take Revenge on Gizmo is a side quest in Fallout.

Quick walkthrough

 * 1) Get Gizmo's confession.
 * 2) Deliver it to Killian.
 * 3) Go with Killian to kill Gizmo.

Detailed walkthrough
To complete this quest, the player first needs to Get Gizmo's confession. Once delivered, Killian will offer the player to join him in killing Gizmo. Should the player accept, he is directed to Lars. Once spoken to, the player will be immediately transported together with Killian and Lars to Gizmo's office.

Gizmo and his bodyguard Izo will immediately attack. He is stationary, but Izo is mobile and dangerous. The player should focus on Izo first before killing Gizmo. Once both are dead, the quest is complete.

Reward

 * 600 XP.
 * 500 bottle caps.