Fat Man (Fallout 4)

The Fat Man is a weapon in Fallout 4.

Characteristics
The Fat Man fires a single deadly mini-nuke shell, perfect for tough enemies like super mutant behemoths, deathclaws or sentry bots, or any enemy that is a significantly higher level. Still, one must be extremely wary of the curve trajectory of the mini nuke, or else one can be trapped within in the explosion. As it is a heavy weapon, the Fat Man benefits from the Heavy Gunner perk, but this makes a weapon that is already overkill superfluously deadly.

As one would expect, the firepower does not come without a penalty; the Fat Man weights 30 pounds by itself, and is even less practical in survival mode when its ammunition weighs more than a third of that. Modifying it to eject several mini nukes at once makes it 18% heavier, but widens the spread and allows one to carpet bomb an entire area.

Crafting
With the Contraptions Workshop add-on, Fat Men can be manufactured using a heavy weapon forge.

Modifications
All numbers are relative to the base stats.

Barrel
By Adding the MIRV Launcher mod to the M42 Fat Man, the Sole Survivor gains the ability to fire more shells at once. While the principle of the weapon is similar to Fallout 3's Experimental MIRV, it has been "nerfed" in it's ability to output damage per shell, doing considerably less damage, and having a limited range. The Heavy Gunner perk will increase the damage that the shells can do, but they always do less to the standard M42 Fat Man's single powerful shell. It has lost the point and kill nature that the Experimental MIRV had in Fallout 3, making the weapon more akin to a curio than something viable for engaged combat.

Locations

 * BADTFL regional office: in the evidence locker near the front of the entrance.
 * Boston mayoral shelter: in the supply room adjacent to the supply room.
 * Cabot House: in Edward Deegan's room in the basement, but this counts as stealing.
 * D.B. Technical High School: on a shelf in the library.
 * Federal ration stockpile: in the Master-locked supply stockpile.
 * Fort Hagen: inside the locked armory in the basement. The password to open the door can be found on a corpse in a side hallway just before the armory.
 * Gunners Plaza: in an Advanced-locked supply closet on the second floor, past some display cases.
 * Lexington: used by a raider in Power Armor on the sky bridge.
 * Revere satellite array: atop the northern satellite dish, next to a power armor frame.
 * Robotics disposal ground: in the trunk of a car behind the sentry bot.
 * South Boston military checkpoint: in the trailer in front of the concrete bunker.
 * Salem: on the second floor of the weapons shop on the west side of town.
 * Spectacle Island: inside the green tugboat to the south, in the generator room.
 * The Castle: inside the armory, accessed by completing Old Guns.
 * The Prydwen: inside Proctor Teagan's cubby, but taking it counts as stealing.