Warhead (Fallout 4)

A warhead is a miscellaneous quest item in Fallout 4.

Gameplay
The weapons were carried by the Yangtze submarine prior to the Great War. Five warheads were launched from the vessel, and one failed to launch correctly, remaining behind. The USS Democracy carried four missiles. None of the missiles were launched because the vessel's captain left the ship with the nuclear launch key.

Location
The warhead can be found inside the Yangtze during Here There Be Monsters and placing a homing beacon anywhere in the Commonwealth launches a missile from the submarine.

Related quest

 * Here There Be Monsters