How do i make my paintball script shoot the paintballs to the players mouse position?

I'm trying to make my paintball gun shoot to the players mouse position but it shoots the underneath the player and doesn't go to the mouse. How do i fix this?

The script is in a GUI and I want to keep it like that.

Here is my whole script :

colors = {45, 119, 21, 24, 23, 105, 104}

function fire(v)

	print'shot'

	local vCharacter = game.Players.LocalPlayer.Character
	local vPlayer = game.Players:playerFromCharacter(vCharacter)

	local missile = Instance.new("Part")

        

	local spawnPos = vCharacter.PrimaryPart.Position
	


	spawnPos  = spawnPos + (v * 8)

	missile.Position = spawnPos
	missile.Size = Vector3.new(1,1,1)
	missile.Velocity = v * 100
	missile.BrickColor = BrickColor.new(colors[math.random(1, #colors)])
	missile.Shape = 0
	missile.BottomSurface = 0
	missile.TopSurface = 0
	missile.Name = "Paintball"
	missile.Elasticity = 0
	missile.Reflectance = 0
	missile.Friction = .9

	local force = Instance.new("BodyForce")
	force.force = Vector3.new(0,90,0)
	force.Parent = missile
	
	--Tool.BrickCleanup:clone().Parent = missile

	local new_script = script.Parent.SnowGun:clone()
	new_script.Disabled = false
	new_script.Parent = missile

	local creator_tag = Instance.new("ObjectValue")
	creator_tag.Value = vPlayer
	creator_tag.Name = "creator"
	creator_tag.Parent = missile
	


	missile.Parent = game.Workspace

end




function activate()


	local character = game.Players.LocalPlayer.Character
	local humanoid = character.Humanoid
	if humanoid == nil then
		print("Humanoid not found")
		return 
	end

	local targetPos = humanoid.TargetPoint
	local lookAt = (targetPos - character.Head.Position).unit

	fire(lookAt)

	wait(.5)


end


mouse = game.Players.LocalPlayer:GetMouse()
mouse.Button1Down:connect(activate)

    local force = Instance.new("BodyForce")
    force.force = Vector3.new(0,90,0)
    force.Parent = missile

Your meant to write the scripts yourself, but anyhow. Its to do with the force in each bullet. The force was written to be 90, so its quite small. You could change it to purhaps 200 to 500. Over that amount would send them flying out to fast to be seen well. Remember that you can edit the script as many times as needed to get it perfect.

    local force = Instance.new("BodyForce")
    force.force = Vector3.new(0,350,0)
    force.Parent = missile

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