Help With Non-Team Kill script not being able to kill non-player humanoids?

Player = game.Players.LocalPlayer
Gun = script.Parent
FireSound = Gun.ShootSound
LoadSound = Gun.ReloadSound
mouse = Player:GetMouse()
enabled = true
Gun.Ammo.Value = 5
MaxAmmo = 5
function e()
    script.Parent.CanReload.Value = true
end

function u()
    script.Parent.CanReload.Value = false
end

function Shoot()
    function Damage(Part)
        local Humanoid = Part.Parent:FindFirstChild("Humanoid")
        local target = game.Players:GetPlayerFromCharacter(Part.Parent)
        if target.TeamColor == Player.TeamColor then -- Checks if they're not on the same team, and if it's not the own player
            Humanoid:TakeDamage(0)
else
	if target ~= Player then
		Humanoid:TakeDamage(5)
	end
		end
end
    if Gun.Ammo.Value > 0 and enabled == true then
        Gun.Ammo.Value = Gun.Ammo.Value - 1
        enabled = false
        Bullet = Instance.new("Part", game.Workspace)
        Gun.GripForward = Vector3.new(-0.975, -0.223, -0.02)
        game.Debris:AddItem(Bullet, 2)
        Bullet.Shape = "Ball"
        Bullet.Size = Vector3.new(0.2,0.2,0.2)
        Bullet.TopSurface = "Smooth"
        Bullet.BottomSurface = "Smooth"
        Bullet.Transparency = 1
        Bullet.BrickColor = BrickColor.new("Dark stone grey")
        Bullet.CanCollide = false
        Bullet.CFrame = Gun.Handle.CFrame
        Bullet.CFrame = CFrame.new(Bullet.Position,mouse.Hit.p)
        v = Instance.new("BodyVelocity", Bullet)
        v.velocity = Bullet.CFrame.lookVector *900
        v.maxForce = Vector3.new(math.huge, math.huge, math.huge)
        FireSound:Play()
        Shell = Instance.new("Part", game.Workspace)
            Shell.TopSurface = "Smooth"
            Shell.BottomSurface = "Smooth"
            Shell.Size = Vector3.new(.1,.1,.1)
            game.Debris:AddItem(Shell, 0.8)
            Shell.CFrame = Gun.Handle.CFrame *CFrame.new(0, -.5, -.3)
        Bullet.Touched:connect(Damage)
        Light = Instance.new("PointLight", Gun)
        wait(.1)
        Light:Destroy()
        Gun.GripForward = Vector3.new(-0.975, 0, -0.02)
        wait()
        enabled = true

    end
end

function Reload(key)
    key = key:lower()
    if key == 'r' then
        if enabled == true and Gun.Ammo.Value < MaxAmmo and script.Parent.CanReload.Value == true then
            LoadSound:Play()
            wait(LoadSound.TimeLength)
            Gun.Ammo.Value = MaxAmmo
        end
    end
end


script.Parent.Equipped:connect(e)
script.Parent.Unequipped:connect(u)
mouse.KeyDown:connect(Reload)
Gun.Activated:connect(Shoot)

This script is a modified version of a "fixed" script by another user of ScriptingHelpers (I posted the old version in another question). The non-team kill aspect of it finally works, but I need it to be able to kill humanoids that aren't related to players, but it won't do that. It just gives an error about not being able to find the Target. Someone help?