Final Judgment

The Final Judgment is a unique weapon in Fallout 4.

Characteristics
Final Judgment is a unique Gatling laser that bears the "rapid" legendary effect. It is the personal weapon of Arthur Maxson who carries it into battle during the quests Airship Down, Rockets' Red Glare, Ad Victoriam and The Nuclear Option.

Due to the way the game calculates bonus percentages, the Rapid affix massively boosts the damage output of a Gatling laser outfitted with the Charging Barrels mod. Instead of increasing the 25% rate of fire that is left of the standard value by another 25%, resulting in 31.25%, the affix simply adds the two values for a result of 50% of the regular rate of fire and a 100% increase in damage output. This, combined with the quadrupled per-shot damage the charging barrels provide, makes Final Judgement one of the most powerful weapons in the game as it deals extremely high energy damage with a still very decent rate of fire, has remarkable accuracy and the most cost-efficient ammunition type of any weapon in the Commonwealth. It shoots fast enough for effective crowd control, yet packs more than enough punch to easily shred through even the most heavily armored targets as well. Final Judgment upgraded with charging barrels is arguably the most well-rounded weapon for players who specialize in heavy weapons can acquire as it has only two weaknesses - its high weight and the few moments its barrels need to spin up to firing speed, a trait which makes it slightly handicapped in close quarters combat.

Variants

 * Gatling laser

Locations
It is carried by Arthur Maxson during the quest Airship Down. Maxson will appear with a full set of T-60f power armor and the weapon aboard a Vertibird while the Institute synths are trying to hack Liberty Prime. There is a small possibility to recover this weapon after the Prydwen is destroyed but it may glitch under the wreckage of the Prydwen (some BOS enemies might glitch under the wreckage).

If you are currently siding with the Minutemen and you want to obtain this weapon without siding with the Brotherhood of Steel, just continue the Railroad quests until you receive the quest Precipice of War, but do not go to Police Station. Instead go to The Prydwen, and kill Elder Maxson in order to receive Final Judgment.

Alternately you can still acquire the weapon after completing Precipice of War by continuing with Rockets' Red Glare; engage the Brotherhood of Steel members in the main deck area, plant the explosives, and then you should get ambushed by Maxson and two unnamed Brotherhood of Steel members (one will have power armor and a Gatling laser) as you exit the Prydwen via the command deck. Be prepared as they'll open fire as soon as loading completes, there's very little cover available, and the energy weapons can deplete your health very quickly.

Maxson also uses it during The Nuclear Option, but it is unobtainable.

Bugs
This weapon may not spawn in Maxson's inventory. Cause is unknown. Elder Maxson will use it to attack the player, but it won't show up in his inventory after his death, so watch it carefully when Elder dies; weapon will fall out of his hands and will be available as is.

It seems that the cheated version of this weapon doesn't have the rapid effect.

El Juicio Final Последний суд