Silent Aim Open Source

local Bullets = require(game:GetService("ReplicatedStorage").Client.Libraries.Bullets)
local originalFire = Bullets.Fire
local TARGET_MAX_DIST = 500
function Bullets.Fire(self, playerController, weaponInstance, weaponData, origin, direction, shotId)
    local newDirection = direction
    local localPlayer = game.Players.LocalPlayer
    local mouse = localPlayer:GetMouse()
    local camera = workspace.CurrentCamera
    local ray = camera:ScreenPointToRay(mouse.X, mouse.Y)
    local raycastParams = RaycastParams.new()
    raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
    raycastParams.FilterDescendantsInstances = {localPlayer.Character}
    local rayResult = workspace:Raycast(ray.Origin, ray.Direction * 1000, raycastParams)
    local hitPoint = rayResult and rayResult.Position or ray.Origin + ray.Direction * 1000
    local closestHRP = nil
    local closestDist = math.huge
    for _, model in ipairs(workspace.Characters:GetChildren()) do
        local hrp = model:FindFirstChild("HumanoidRootPart")
        if hrp and model ~= localPlayer.Character then
            local dist = (hrp.Position - hitPoint).Magnitude
            if dist < closestDist then
                closestDist = dist
                closestHRP = hrp
            end
        end
    end
    for _, model in ipairs(workspace.Zombies:GetChildren()) do
        local hrp = model:FindFirstChild("HumanoidRootPart")
        if hrp then
            local dist = (hrp.Position - hitPoint).Magnitude
            if dist < closestDist then
                closestDist = dist
                closestHRP = hrp
            end
        end
    end
    if closestHRP and closestDist < TARGET_MAX_DIST then
        newDirection = (closestHRP.Position - origin).Unit
    end
    return originalFire(self, playerController, weaponInstance, weaponData, origin, newDirection, shotId)