- In the Hopeville silo bunker; in the hallway just after one unlocks the silo doors.
- In the Hopeville Missile Base HQ; under a desk.
- In the Ashton missile silo behind a locked door, level 1 silo; hack the (hard) terminal next to it.
- In the municipal sewers connected to the Third Street Municipal Building offices. Enter the pipe one will see on the north-west side of the building.
- Near the Cave of the Abaddon, behind the warhead south-east of the Cave entrance. Once one has detonated the warhead, it's on the ground to the northeast of the pipe's top opening close to the mountain wall. If one has already destroyed the warhead and missed the ED-E upgrade, fast travel once again to the Cave of Abaddon and turn back outside. Follow the mountain wall on one's left. It's north of the twisted red letters (WORLDSHRP) on the fallen building. If two electric posts on the left have been passed, the player character has gone too far.
Grants 500 XP upon completion.