More paint has gone down.
After the NATO camo was dry, I sprayed some water onto the model and sprinkled some salt in certain areas. Once this was dry, light coats of US Gulf War Armour was airbrushed over the model and left to dry.
Next I started to brush of the salt granules to reveal the camo colours underneath showing through. Still a bit more to go, only the side armour panels have been partially cleaned so far.
More updates later.