..................

hook.Add("HUDPaint", "Crosshair", function()
        surface.SetDrawColor(Color(255, 255, 255, 255))
        surface.DrawLine((ScrW() / 2) - 10, ScrH() / 2, (ScrW() / 2) - 4, ScrH() / 2)
        surface.DrawLine((ScrW() / 2) + 10, ScrH() / 2, (ScrW() / 2) + 4, ScrH() / 2)
        surface.DrawLine((ScrW() / 2), (ScrH() / 2) - 10, ScrW() / 2, (ScrH() / 2) - 4)
        surface.DrawLine((ScrW() / 2), (ScrH() / 2) + 10, ScrW() / 2, (ScrH() / 2) + 4)
end)