From The Vault
- In the Hopeville missile silo bunker; in the hallway just after you unlock the silo doors.
- In the Hopeville Missile Base HQ; under a desk.
- In the Ashton missile silo behind a locked door; hack the (hard) terminal next to it.
- In the municipal sewers connected to the Third Street Municipal Building offices.
- Near the Cave of the Abaddon, behind the warhead southeast of the cave entrance. Once you've detonated the warhead, it's on the ground to the left of the pipe's top opening.