Plan: Missile launcher quad barrel

Plan: Missile launcher quad barrel is a plan in Fallout 76.

Location

 * Random reward for completing Event: Census Violence, Event: Monster Mash, Daily: Cop a Squatter, Event: Line in the Sand, Event: Distant Thunder, Event: Surface to Air, Event: AWOL Armaments.
 * Low chance of being rewarded for completing Daily: Mistaken Identity, Horde events, Hunter/Hunted PVP, and all Powering Up quests.
 * Vendors
 * Pleasant Valley Ski Resort: Sold by vendor bot Resin.
 * Watoga Shopping Plaza: Sold by Vendor Bot Phoenix.