Cloak & Dagger

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Cloak & Dagger is one of the companion perks in Fallout 4.


To gain the perk, the Sole Survivor has to reach maximum affinity with Deacon.


The player character gains +20% sneak attack damage and the duration of effects of Stealth Boys is increased by +40%.


  • Sneak attack damage listed is rather misleading. It seems to be 20% of default sneak attack damage, resulting in 40% increase on top of the Ninja perk effect, if the player has it. Result is then multiplied by the Mister Sandman perk effect, if it is applicable. Examples:
    • No perks other than Cloak and Dagger. Sneak attacks will do 2.4x damage with a ranged weapon or 3.6x with a melee weapon.
    • Ninja rank 3, no Mister Sandman. Sneak attacks will do 4.2x damage.
    • Ninja rank 3, Mister Sandman rank 3, silenced weapon. Sneak attacks will do 5.25x damage, rounded up to 5.3x in game message.
  • There does seem to be a bug with the calculations with all three perks active, depending on the order in which they were granted, as follows:
    • The 1.4 patch lowered the spread and max of multipliers:
      • Ninja 3, Cloak, Sandman 3 = 4.8x
      • Cloak, Sandman 3, Ninja 3 = 4.8x
      • Cloak, Ninja 3, Sandman 3 = 4.8x
      • Ninja 3, Sandman 3, Cloak = 4.7x
      • Sandman 3, Cloak, Ninja 3 = 4.7x
      • Sandman 3, Ninja 3, Cloak = 4.4x (!)
    • Pre-1.4 patch:
      • Ninja 3, Cloak, Sandman 3 = 6.3x
      • Cloak, Sandman 3, Ninja 3 = 6.3x
      • Sandman 3, Cloak, Ninja 3 = 6.3x
      • Ninja 3, Sandman 3, Cloak = 6.3x
      • Sandman 3, Ninja 1, Cloak, Ninja 3 = 5.9x
      • Sandman 3, Ninja 2, Cloak, Ninja 3 = 5.9x
      • Sandman 3, Ninja 3, Cloak = 5.9x
      • Cloak, Ninja 3, Sandman 3 = 5.4x (!)
  • Further testing needed, but right now the only solution appears to be selecting/receiving these perks in the "correct" order.
  • The perk's icon uses the design of the Stealth Boy from Fallout 3 and Fallout: New Vegas instead of the Fallout 4 variant.
  • Ace Operator's acquisition has no bearing on the order, as it is a flat damage bonus and not a multiplier.


Obtaining the Cloak and Dagger perk may contribute to a bug where the combination of the Sniper perk and armor with the Stabilization mod being worn on both arms no longer prevents all sway when aiming down a scope. See the Sniper page for a potential work around.

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