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Weapon spread

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Weapons Spread determines the accuracy of a ranged weapon in degrees. Formulas here taken from the GECK wiki.[1]

Spread Computation

\begin{align}\text{total spread} = \text{aim spread} + \text{weapon spread}\end{align}

The total spread is equal to a spread due to the character aiming, and a spread due to the weapon itself.

Aim Spread

\begin{align} \text{aim spread} = \text{perk effects} \times ( \text{state effects} \times \text{skill effect} \times 1.5 + \text{limb condition effect} ) \end{align}

State Effects

State effects combine multiplicatively.

  • Crouching reduces spread by 60%
  • Using iron sights reduces spread by 35%
  • Walking or running increase spread by 100%

Skill Effect

The appropriate skill (Guns, Energy Weapons or Explosives) reduces spread by 0.5% (from 50% up to 100%) per skill point.

Limb Condition Effect

Damage to limbs increases (pre-perk) spread. A one-handed weapon will have spread increased by 0.5% if the right arm is crippled. A two-handed weapon will have spread increased by 0.25% with one arm crippled and 0.50% with both arms crippled.

Weapon Spread

Weapon spread is equal to the Min Spread stat of the weapon in degrees. Weapon Condition has no effect on spread.

References