The Shaheen 1 is the M-11, the Shaheen 2 is the M-18, there is no difference between the two.
The first shahab-3 was indeed a Nodong, but this was 15 years ago, the latest Shahab-3, the shahab-3D or Ghadr-110 is so much more advanced, it uses more efficient fuel, it has RAM (radar absorbing...