(Legendary weapon prefixes)
(Notes: Note about Deadeye)
Line 450: Line 450:
** Night: 150%
** Night: 150%
** Midnight: 200%
** Midnight: 200%
* When the '''Deadeye''' modifier effects stops, it also cancels all other slow time effects (like found on [[Jet]]), potentially making you waste your chems.
* It appears (though this cannot currently be outright confirmed) that, while the legendary weapons and armor that are found on enemies are random, there are certain "pools" of said weapon and armor types specifically tied to the type of enemy and location in which they are spawned. Certain legendary variants of weapons encountered early in the game - such as laser muskets and pipe pistols - will not spawn on [[Gunners]], but will always have a chance to be found on legendary enemies with an area-specific low level cap (e.g. the [[Feral ghoul (Fallout 4)|ghouls]] in [[Super Duper Mart (Fallout 4)|Super Duper Mart]]).
* It appears (though this cannot currently be outright confirmed) that, while the legendary weapons and armor that are found on enemies are random, there are certain "pools" of said weapon and armor types specifically tied to the type of enemy and location in which they are spawned. Certain legendary variants of weapons encountered early in the game - such as laser muskets and pipe pistols - will not spawn on [[Gunners]], but will always have a chance to be found on legendary enemies with an area-specific low level cap (e.g. the [[Feral ghoul (Fallout 4)|ghouls]] in [[Super Duper Mart (Fallout 4)|Super Duper Mart]]).

Revision as of 18:51, July 26, 2016

Icon disambig
For the Legendary armor effects in Fallout 4 see , see Legendary armor effects.

Legendary weapon effects are effects applied to basic weapons that use special prefix modifiers that cannot be obtained elsewhere. Legendary weapons cannot be scrapped, but can be modified and traded with vendors. They will appear on screen when picked up, and are marked with a star. Unlike unique weapons, they are randomized and are never named. Legendary effects can provide the same effects as unique weapons; a "Relentless .44 pistol" is identical to Kellogg's pistol. Like unique weapons, Legendary weapons can be given a custom name and modified at a weapons station.

Legendary weapons are only found on the bodies of "Legendary" variants of enemies. They can spawn at random locations throughout the Commonwealth, depending on the difficulty setting. They are much more difficult to defeat than regular enemies, as each one has a chance to "mutate" after their health is depleted, restoring it to full and boosting their stats. They will almost always have a legendary piece of equipment in their inventory.

Legendary effects can be added to items through the console by following the next steps:

  1. Drop the item on the ground.
  2. Pick up the item in the air by holding E (how you would normally drag ragdoll and other objects around).
  3. Open console and enter "GetPlayerGrabbedRef". This returns the RefID of the item you're holding in the air.
  4. Take note of the returned RefID.
  5. Look up the ModID below for the desired legendary weapon effect, note it as well.
  6. Enter the following in the console (substitute the appropriate RefID and ModID): [RefID].amod [ModID]
  7. For example, you would enter in something like this: f00726b.amod 001cc2ac.
  8. The item will drop to the ground, and when you go to pick it up, you will get an overview similar to the one you get when you pick up any given legendary item for the first time.

As a simpler alternative to points 2 - 4 you can simply left-click on the item when it is lying on the floor. The RefID will then be displayed on-screen just as if you used the mentioned console command. Bear in mind certain weapons can be unusually challenging to left-click when dropped, so if this is unsuccessful, use GetPlayerGrabbedRef instead.

You can't stack several mods on a single item, but you can replace a mod with another one via the console.

Legendary weapon prefixes

Prefix Stat Form ID Weapon type Unique weapons
Assassin's Does 50% more damage against humans. 001e6846 All Partystarter
Berserker's Does more damage the lower the player character's Armor Resistance. (Up to 200% at 0 resistance) 001ef5d7 Melee, Unarmed
Blazing Gametitle-FO4 FH Blocking has a 25% chance to set attackers on fire for 50 damage. xx00da97 Melee only
Bloodied Does more damage the lower the users health is. 001ec036 Melee, Unarmed Survivor's Special
Cavalier's Reduces damage by 15% while blocking or sprinting. 001f57e2 Melee, Unarmed
Charged Gametitle-FO4 FH 10% chance to deal 100 Electrical damage on a successful block. xx00da92 Melee
Crippling 50% more limb damage. 001e6d6b All Eddie's Peace,
Wastelander's Friend,
The Last Minute
Deadeye Gametitle-FO4 FH Time slows down for a moment while aiming. xx00da99 Ranged weapons
Defiant Gametitle-FO4 FH The final shot in the magazine deals twice the normal damage xx00da91 Ranged weapons
Enraging Critical hits cause target to frenzy. 001f6ad4 All Good Intentions
Explosive Bullets explode on impact doing 15 points area-of-effect damage. 001e73bd Ballistic weapons Spray n' Pray,
Kiloton Radium rifleGametitle-FO4 FH
Exterminator's Does 50% more damage against Mirelurks and bugs. 001f81eb All Reba II
Freezing Does 10 points cryo damage and will freeze targets on critical hits. 001f5479 All
Frigid Gametitle-FO4 FH 20% chance to freeze the enemy when you block their attack xx00da93 Melee, Unarmed
Furious Increased damage after each consecutive hit on the same target. 001ef481 Melee, Unarmed
Ghoul slayer's Does 50% more damage against ghouls. 001e6847 All
Hitman's Gametitle-FO4 FH Does 10% more damage when looking down the sights. xx00da98 Ranged Weapons
Hunter's Does 50% more damage against animals. 001e6845 All
Incendiary Sets target on fire for 15 points of damage. 001e7173 Ballistic weapons Ashmaker,
The Gainer
Instigating Does double damage if the target is at full health. 001f04b8 All Old Faithful,
Sentinel's Plasmacaster,
Admiral's FriendGametitle-FO4 FH
Irradiated Does 50 points additional radiation damage. 001cc469 All
Junkie's Does increased amounts of damage the more withdrawal effects the Sole Survivor is suffering. (+165% dmg with 11 addictions) 001eb99a All
Kneecapper 20% chance to cripple the target's leg. 001f1048 All Big Jim, Sergeant AshGametitle-FO4 FH
Lucky Critical shots do double damage and the critical meter fills 15% faster. 001cc2a6 All Righteous Authority
Medic's Heals target instead of hurting them. 001f109c Unused
Mutant slayer's Does 50% more damage against Super Mutants. 001e6848 All Virgil's rifle
Never Ending Sets ammo capacity equal to the amount one is carrying. 001cc2ac Guns Prototype UP77 "Limitless Potential",
Wazer Wifle
Nimble Provides 75% faster movement while aiming. 001ebabd Guns Death From Above
Nocturnal Does increasing amounts of damage as the night grows longer and less damage during the day. 001e8174 All
Penetrating Ignores 30% of the target's damage and energy resistance. 001f4426 All Radical ConversionGametitle-FO4 FH,
FencebusterGametitle-FO4 FH
Plasma infused Adds 10 points of energy damage and can turn enemies into goo. 001f9b4d Ballistic weapons
Poisoner's Target is poisoned for 10 seconds. (3 points poison damage per second) 001f31b9 All
Powerful / Mighty Provides 25% more damage. 001cc2ab All
Quickdraw Costs 25% fewer Action Points. 001f1026 All
Rapid 25% faster fire rate, 15% faster reload. 001ec56d Ranged weapons Experiment 18-A,
Final Judgment
Protectron's Gaze Gametitle-FO4 AUT
Relentless Refills Action Points on a critical hit. 001ed37e All Kellogg's pistol
Resilient Gametitle-FO4 FH +150 damage resistance while reloading xx00da9a Ranged Weapons Skipper's Last Stand
Resolute Gametitle-FO4 FH Slows time momentarily as the last round is chambered xx00da96 Ranged weapons
Sentinel's Take 15% less damage while standing and not moving. 001f5995 Melee, Unarmed
Staggering Chance to stagger on hit. 001e81ab All Justice,
The HarvesterGametitle-FO4 FH
Stalker's If not yet in combat, increases V.A.T.S. accuracy but costs more AP. 001f04bd Ranged weapons Tinker Tom Special
Steadfast Gametitle-FO4 FH +50 damage resistance while aiming xx00da95 Ranged Weapons
Troubleshooter's Does 50% more damage against robots. 001f81ec All General Chao's Revenge
Two shot Fires an additional projectile. 001cc2ad Ranged weapons Big Boy,
Old ReliableGametitle-FO4 FH
Overseer's Guardian
VATS enhanced Improved V.A.T.S. hit chance, 25% less Action Point cost. 001cc2aa Ranged weapons Deliverer
VATS enhanced 40% less Action Point cost. 002056f0 Melee, Unarmed Rockville Slugger,
The Fish CatcherGametitle-FO4 FH
Violent Deals +25% damage and limb damage, but has more recoil. 001f7b8a Ballistic weapons Le Fusil Terribles
Wounding Targets bleed for 25 points of additional damage. 001e7c20 All Pickman's Blade,
BloodletterGametitle-FO4 FH

There are also some effects that cannot be found on randomly generated legendary weapons. These are known as unique weapon effects, and that can only be found by adding the effect through commands, or getting the unique weapon that they are found on.

Unique weapon effects

Prefix Stat Form ID Removeable Unique weapons
Atom's Judgement Gametitle-FO4 FH +100 Radiation damage. xx03a387 No Atom's Judgement
Automatic Automatic fire mode. 000a4739 No Automatic Laser Musket
Charging Gametitle-FO4 AUT Irradiates user. Can be charged up to 5 times. xx001125 No Salvaged assaultron head
Lucky Eddy Gametitle-FO4 FH +2 Luck xx0442cb No Lucky Eddy
Sacrificial Blade Exceptional damage, deals poison and bleeding damage. Template:Id Yes Kremvh's Tooth
Lightning Gametitle-FO4 AUT Fires an electrical charge that arcs between targets. xx001126 No Tesla rifle
M4 Carbine Gametitle-FO4 FH Lighter weight, changed ammo type to 5.56, +25% fire rate, -15% reload time. xx014457 No December's Child
Shem Drowne Sword Deals radiation damage. 00238732 No Shem Drowne sword
Striker Gametitle-FO4 FH 50% chance to cripple the target's leg. xx056f2a No The Striker
World Series Logo Chance to sent targets flying. Template:Id No 2076 World Series baseball bat


  • Ranged category excludes heavy weapons such as minigun, flamer, gatling laser, missile launcher, fatman, etc.
    • Two Shot excludes gamma gun.
    • Never Ending excludes gatling laser, laser musket, syringer and junk jet.
    • Freezing excludes cryolator.
  • Explosive weapons such as the Broadsider and Missile Launcher will not work with certain legendary effects, such as Incendiary and Explosive. These effects appear to replace the explosive damage with their own effect, reducing the weapon's damage dramatically.
  • Several legendary effects scale their damage with perks:
    • The damage dealt by the Explosive prefix is increased by the Demolition Expert perk as well as the Explosives bobblehead. With 4 ranks in Demolition Expert and the Explosives bobblehead, Explosive weapons actually deal 32.25 explosive splash damage per pellet.
    • The bonus damage from the Freezing and Plasma infused prefixes scales with all relevant damage modifiers. That is, with 5 ranks in Gunslinger, a Plasma-Infused Pipe Pistol will deal 20 points of bonus energy damage. However, if you had 5 ranks in Commando but no ranks in Gunslinger, that pistol would only deal the base 10 points of energy damage. This bonus damage is also affected by Bloody Mess, Astoundingly Awesome Tales #07, and possibly (unconfirmed) by rank 3 of Lone Wanderer. For melee weapons, the damage is affected by the Rooted perk as well.
  • The Two shot modifier makes the weapon fire an additional projectile while still using only 1 ammo and at slightly reduced accuracy and can greatly increase recoil. The game adds the base (i.e. unmodded) damage of the gun to its current (modded) damage and then splits the combined damage evenly into two projectiles. For example, an unmodded Hunting rifle does 37 damage, while a .50 cal Hunting rifle does 64. So a Two-shot .50 cal Hunting rifle does 64+37 = 101 damage, resulting in two projectiles hitting for 50.5 each. The damage value displayed in the Pip-Boy is the damage of both projectiles combined.
    • Note that the game uses the combined damage to calculate the damage reduction multiplier of the target's armor, so when both bullets hit, it does the same damage that one bullet with the combined damage would do. Therefore a Two-shot weapon will do more damage than the shots of an identically modded normal weapon and its unmodded variant combined.
    • As only the weapon's base damage is added, a shot from a heavily modded version of a two-shot weapon may do significantly less than twice the damage of a shot from a non-legendary version of the weapon modded in the same fashion. It does, however, help punching through the target's armor, delivering more of the applied mods' damage.
    • Two shot has an interesting ability to provide a slight damage up when applying weapon mods which reduce damage. As it uses the base damage for the second projectile's damage, a mod which lowers damage (such as an automatic receiver) will be averaged with a higher damage rating, giving both bullets slightly higher damage than the weapon would have without Two shot.
    • Upgrading a Two Shot Fat Man like Big Boy with the MIRV modification will result in the weapon carpet-bombing a huge area with twelve mini nukes instead of eight while simultaneously and massively reducing its range, so be aware of your surroundings and launch trajectory in order to avoid damaging yourself.
    • When applied to an unmodified double barrel shotgun, it will double its base damage, but cause it to have zero accuracy, meaning it will only be effective at point blank range.
  • The Explosive mod is exceptionally powerful when paired with weapons with low base damage that boast a high rate of fire or shoot several projectiles, as each bullet, pellet or scattered shot will produce an independent explosion, and the flat damage bonus itself is usually more than percentile bonuses.
    • The Minigun is probably the best example for the first case. Considering a base damage of 8 points per bullet, adding 15 points of explosive damage to every shot fired effectively triples the weapon's damage output even without taking the splash damage into account, as opposed of the "Mighty" Legendary Mod adding only 25% of 8 which is +2 to an end result of 10 versus 8 + 15 resulting in 23. Installing barrel mods somewhat weakens this effect, but it remains quite powerful regardless. The fact that the splash radius makes the minigun's inherent spread largely irrelevant only serves to further improve the effect's usefulness - as long as the weapon is aimed at the player's target, it will hit it even if the bullets themselves don't connect.
      • As of the current patch, heavy gunner affects both the base and the explosive component of damage. For example, a base minigun does 8 damage per bullet. With explosive, it does 8+15=23 damage per bullet. With rank 1 heavy gunner, you get +20% damage, but that bonus is applied to both the original 8 and the explosive 15. It therefore does 1.2 * (8 + 15) = 27 (rounded down) per bullet, instead of just (1.2 * 8) + 15 = 24 damage. At rank 5, it therefore does 2 * (8 + 15) = 46 damage per round, and NOT just (2 * 8) + 15 = 31 damage.
      • The demolition expert only affects the explosive component. With rank 1, for example, the weapon then does 8 + (1.25 * 15) = 26 damage per bullet. Similarly, maxed out the perk does 8 + (2 * 15) = 38 damage per round
      • Taken together, this allows the minigun to far exceed its traditional base damage, doing a maximum of 2 * (8 + (2 * 15)) = 76 damage per round, instead of the 46 damage per round as with other weapon classes.
        • Currently this does not apply to all weapon perks. The bonus damage for gunslinger, for example, only affects the ballistic portion of pistol damage, and not the +15 explosive damage. Similarly, rifleman only affects the ballistic portion of rifle damage, and not the +15 explosive damage.
    • On the other hand, shotguns benefit from explosive shots at least as much as the minigun does, multiplying their damage output based on the amount of pellets/beams in each shot.
      • An explosive combat shotgun with an advanced receiver (firing 8 projectiles instead of a base of 7), 3 star Demolition expert, and 5 star rifleman can do up to 2*100+(15*1.75)*8=410 Base Damage per shot. (Please note that V.A.T.S. does not take every projectile in to account, and the weapon information on your Pip-Boy will fall short of the total damage)
    • The mod fully benefits from the Demolition Expert perk. With rank 3 of said perk, the splash damage affects an area several meters across.
    • This mod is apparently not meant to be found on most types of energy weapons. Adding it to one via console commands results in the gun changing its firing animations and sound effects from a laser/plasma/fire-based weapon to a ballistic gun, including a stream of casings being ejected from somewhere behind or inside the weapon. The laser rifle seems to be an exception and retains its normal set of animations.
    • Care is advised when firing Explosive-enhanced weapons in close quarters - their splash damage can injure the shooter just like grenades, missiles or any other explosive munitions do.
    • Killing almost any sort of enemy with a powerful Explosive-enhanced automatic weapon in VATS will often launch the target dozens of meters into the air and hurl them a considerable distance, especially if one of the salve's first hits already dealt the killing blow. This can make finding the corpse for looting difficult at times.
    • Strangely, explosive shots fired from a weapon with this modifier, and unlike shots fired with weapons bearing the Incendiary effect, will not ignite oil pools.
  • The Kneecapper mod shines on any weapon with a high rate of fire in order to increase the likelihood of triggering the crippling effect. If that weapon also boasts decent damage output, then all the better, but even something as weak as a humble pipe submachine gun can offer invaluable combat benefits.
    • The most obvious targets are all types of melee-focused enemies from mole rats over feral ghouls all the way up to deathclaws. A short burst will usually be enough to turn them into sitting ducks, making them unable to close in on their target and therefore depriving them of almost any threat potential.
    • While enemies with ranged weapons still pose a threat even with their legs crippled, they collapse to the ground when the effect triggers and remain prone for some seconds, taking them out of the fight temporarily. If that enemy was shooting from behind cover, their line of sight will be broken, thus preventing them from attacking any longer until the Survivor digs them out.
    • Kneecapper weapons should not be used to attack flying Vertibirds. When the crippling effect triggers, it will cause a bug by instantly destroying the flyer's turbines while making it impossible to destroy completely. This can be especially aggravating during the Rockets' Red Glare quest for the Railroad where you are tasked with eliminating an attacking Brotherhood of Steel Vertibird.
      • Kneecapped Vertibirds will hover just above ground level for as long as you remain in the area. Walking away should trigger their crash into the ground, killing the Vertibird.
  • The Neverending mod can make certain weapons unstable. For example, a Laser musket with the effect will consume all ammunition for the gun that is currently in the player inventory. However, as the musket uses its "energy reservoir" to store the crank charge, and this mod sets the reservoir size to the amount of ammo in your inventory, the mod effectively removes the crank limit. Since the damage of the weapon is based on how many cranks you can give it, this gives that single shot a devastating amount of damage. For example, at 200 cranks, a single shot can do about 30,000 damage.
    • In addition, powerful weapons that are balanced only by reload times, such as the Fat Man, Missile launcher and the Double-barrel shotgun will all have that balance thrown out the window, turning all of these weapons into semi-automatic versions of themselves.
  • The Instigating mod is at its best when found on powerful semi-automatic or bolt-action weapons, like all kinds of sniper rifles and especially the Gauss rifle. Considering that most, if not all hostiles will be at full health when the player is setting up a sniper ambush against an enemy stronghold, automatically dealing double damage against them seriously increases the chance of handing out a chain of one-hit-kills. Slap on a silencer before going to work and you can clear entire outposts without ever being detected. A fully charged sneak shot from a fully upgraded and silenced Instigating Gauss rifle, coupled with maxed Rifleman, Ninja and Mister Sandman perks, is a virtually guaranteed one-hit-kill against anything that roams the Commonwealth, regardless of distance, difficulty setting and whether it was a headshot or not.
  • The Penetrating mod's effectiveness, due to the exponential curve of armor based damage reduction, does not vary with the target's armor after a certain threshold. When the target's armor rating is less than 15% of the weapon's damage, which is very little, the damage is applied in full (meaning 99%) and the Penetrating effect wasted. If the armor rating is between 15% and 21.4%, a Penetrating weapon will still do full (99%) damage while a standard variant will already experience damage reduction, making the Penetrating weapon increasingly better by comparison (0% to 13.9% more damage). Past this point, which is still very low for semi-automatic weapons, having the Penetrating mod means a static 13.9% increase in effective damage.
  • Some weapon effects can be quite worthless, such as a ghoul slayer's effect on a Gamma gun.
  • The Incendiary mod's effectiveness can be seen at its best when used on automatic or low base damage weaponry, such as the Minigun or an automatic version of the Combat Rifle. However the damage does not stack, making the damage fall far behind other legendary affixes.
    • Considering Incendiary does 15 points of damage over time and Wounding does 25, Incendiary is a a nearly useless effect by comparison and can be replaced by Wounding on all weapons with greater efficiency.
    • Aside from its damage, the Incendiary effect can also ignite flammable or explosive materials, like oil spills, giving the effect some additional (albeit highly situational) usefulness.
  • The Freezing and Plasma infused mods seem to be two of the most widely overlooked weapon effects in the game thus far. While only doing 10 points of damage each, the damage from the weapon effect is shown directly under the weapon's normal damage as additional damage, thus enabling it to be increased with respective perks. For example, at rank 4 of Big Guns and rank 3 of Lone Wanderer, a Freezing Minigun will do 23 points of ballistic damage and 28 points of cryo damage, making it superior to other bonus damage weapon effects such as Wounding and Incendiary mainly because the cryo damage is instant and not a damage over time effect. The Freezing and Plasma infused mods are also vastly superior on all other low-damage, fast-attacking weapons such as Rippers and automatic weapons. Other perks that directly or passively affect damage further increase the damage of these weapon effects as well.
    • Freezing weapons also have great synergy with critical focused builds due to their freezing effect on critical hits. With Critical Banker, Four Leaf Clover and a freezing weapon with a low Action Point cost, each instance of combat can be opened by freezing up to 5 combatants (4 without the Far Harbor DLC) -reducing a numbers advantage or allowing free attacks for a time. This is also useful for neutralizing dangerous opponents that can't be killed quickly enough otherwise, such as someone wielding a Fat Man or Deathclaws. Use of Overdrive allows this to tactic to be used without a VATs focused build when paired with a rapid firing weapon.
    • Plasma Infused weapons share many characteristics with "true" plasma weapons including the latters' high chance of spawning several units of Nuclear material on any defeated enemy. Gooifying the target with a critical kill shot virtually guarantees this, thus providing an abundant source for this otherwise quite rare crafting component, especially for player characters specializing in critical hit chance.
  • Wounding is of particular note because there is no such thing as bleed resistance and bleed effects stack, and many enemies in the game are challenging to kill because their resistances are high, not because their health pool is absurdly enormous. The effects are most obvious on a high rate of fire gun, such as an automatic scatter laser rifle or high speed minigun, when used on something which can normally take a large amount of abuse, such as a legendary deathclaw.
  • The Irradiated mod is a devastatingly powerful mod coupled with any fast-firing, automatic weapon when used on humans regardless of the weapon's base ballistic/energy damage. When combined with the Nuclear Physicist perk, Irradiated weapons do 100 points of radiation damage and can make short work of any human enemy. Be aware, however, that the radiation damage from this mod is not directly reflected in VATS and may be misleading when calculating the number of attacks needed versus damage when targeting an enemy. Given the common spawn of this mod on low-level weapons, such as pipe pistols and 10mm pistols, low-level Sole Survivors would do well to hold onto one of these weapons for quickly dispatching raiders. Unfortunately, at later levels, the sheer amount of damage that can be done with other weapons and weapon mods greatly outweigh the benefits of weapons with this mod, essentially making it another useless mod unless you wish to take the perk for power armor and the Gamma Gun, in which case the Gamma Gun still outweighs the damage caused by this mod (unless using an Irradiated Gamma Gun).
    • The Irradiated mod is also very effective against legendary enemies, as it reduce the maximum health points of the target, preventing the healing effect of the mutation.
  • The Staggering prefix, when applied to a weapon with a very high fire rate (such as a Ripper), can render the target unable to attack while being hit by the weapon, making fights against large targets significantly easier. This is especially effective when combined with other effects that can cause stagger, such as Commando.
  • Poisoner's is generally considered a fairly terrible effect because of the fact that the majority of creatures are resistant (or immune) to poison, and it deals the damage over a very long period of time. While its damage effect totals out to be higher than other modifiers, it is also weaker due to its lack of immediate potency.
  • The Crippling modifier can be confusing. The modifier does not increase damage dealt to the target if a limb is hit. Instead, the modifier makes it easier to cripple limbs.
  • The Nimble modifier can be used by players wearing power armor to significantly boost their movement speed while sneaking. Although it can be difficult to walk around with certain weapons scoped (such as weapons with actual scopes), aiming down the sights of a small nimble pistol while sneaking in power armor results in a faster movement speed faster than normal standing running in power armor.
    • The movement speed while overburdened is the same as that while not overburdened - thus, a player can continue moving at running speed while overburdened simply by aiming down a weapon's sights continuously.
  • The Sentinel's mod stacks with the armor mod of the same name. Equipping 7 pieces (weapon, helmet, left arm, left leg, right arm, right leg, chest) will negate all damage while standing still.
  • The Rapid mod has an interesting effect when found on a Gatling laser. Due to the way the game calculates bonus percentages, a Gatling laser with the Charging Barrels mod (-75% rate of fire) and the Rapid affix (+25% rate of fire) shoots twice as fast as it normally would, at 50% of the standard firing rate instead of 25%, which is still almost as fast as an assault rifle. This effectively doubles the gun's damage output with a mod installed that already quadruples its per-shot damage, creating a truly devastating weapon that is extremely cost-efficient in terms of ammo usage. This effect is essentially what makes the unique Final Judgment variant so deadly. It also largely eliminates the Charging Barrels' greatest drawback (very low rate of fire) and thus makes it far more useful in fights against numerous weak and/or fast-moving enemies that are normally hard to hit, in addition to still inflicting ludicrous amounts of damage to anything else as well, no matter how heavily armored it might be.
  • The Berserker effect works in reverse as well; having an excessive armor rating will actually decrease the weapon's damage to effectively nothing. Therefore, contrary to its name, this effect is probably best used by a pure stealth built character with no armor. The effect is not decreased by radiation resistance.
    • The "Berserker" mod occasionally causes a miscalculation of damage; the damage decreases if not wearing any base clothing (army fatigues, vault jumpsuit, jeans and t-shirt, etc.).
    • The damage calculation is also not shown until the weapon is equipped, and then it will also translate the effect onto other weapons when viewed in the inventory.
    • This weapon mod can be added to ranged weapons via console, e.g. "Berserker's Shielded Gauss rifle"
  • The Nocturnal modifier works following way:
    • Morning, Afternoon, Evening: 33%
    • Sunrise, Sunset: 66%
    • Night: 150%
    • Midnight: 200%
  • When the Deadeye modifier effects stops, it also cancels all other slow time effects (like found on Jet), potentially making you waste your chems.
  • It appears (though this cannot currently be outright confirmed) that, while the legendary weapons and armor that are found on enemies are random, there are certain "pools" of said weapon and armor types specifically tied to the type of enemy and location in which they are spawned. Certain legendary variants of weapons encountered early in the game - such as laser muskets and pipe pistols - will not spawn on Gunners, but will always have a chance to be found on legendary enemies with an area-specific low level cap (e.g. the ghouls in Super Duper Mart).
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