- Inside one of the buildings at the Red Rocket Mega Stop, find and use maintenance terminal and select "ALERTS".
- Find three Red Rocket protectron robots, kill them and take Red Rocket cores.
- Return to Red Rocket Mega Stop and deposit the cores.
When player characters first reach the Red Rocket Mega Stop, a miscellaneous objective points them to a nearby building on the northwest side of the stop. Inside, alongside a stash box, Tinker's workbench, and power armor station, an automated message is playing regarding protectrons that work at the truck stop having wandered off and that their cores need to be recovered and recycled. Upon reading the terminal entry marked "ALERTS", an area is circled on the map where the Red Rocket protectrons can be found, usually just northeast of the truck stop and north of Freddy Fear's House of Scares.
Once in the area, look around for the protectrons. They will initially be passive, but once they see the player characters, they will turn hostile and open fire, believing them to be a disgruntled customer. Kill them, loot them for their Red Rocket Cores, and once three have been collected, return to the Mega Stop and place them in the recycle bin next to the terminal to complete the quest and receive the rewards for completing it.
This article is too short to provide more than rudimentary information about the subject. You can help Nukapedia by expanding it.