Plan: Sledgehammer heavy spiked rocket

Plan: Sledgehammer heavy spiked rocket is a plan in Fallout 76.

Location

 * Random reward for completing One of Us, Event: Heart of the Swamp, Event: Always Vigilant, Event: Irrational Fear, Event: It's a Trap, Daily: Queen of the Hunt, Daily: Idle Explosives, Daily: Waste Not, Daily: Play Time.
 * Low chance of being rewarded for completing Daily: Mistaken Identity, Horde events, Hunter/Hunted PVP, and all Powering Up Quests.