No, AH does NOT have a Type 18. Our I-16 clearly has M-63 power plant while the Type 18 was powered with a M-62. The Types AH I-16 represents through different load outs are 24, 28, 29.
The only difference between the 18 and the 28 was the engine. The later M-62 engines put in the I-16 were only a small step behind the M-63s in regards to horsepower (less than 100 hp difference, if I recall), otherwise, every feature you find on the 28 was introduced on the 18: tail wheel instead of skid, possible drop tanks, rocket racks, etc.
Aside from a few mph difference we have it in all but name. Our I-16 is a hybrid anyways, with prototypical speed charts (production models being slower by nature), so it's not even a true Type 28. It
is pretty damn close to the 18 regardless.
I'm not ignorant of the I-16. While I don't know the history as well as some others, I do appreciate its early record and my personal preference is to call it Rata or Mosca, despite these not being as common as the Ishak and other names from WW2. I have an interest in the plane and have read a few things on it.
If you REALLY want an earlier model I-16 it would have to be the Type 5 or Type 10. Despite being totally obsolete by the German invasion, they were the most produced marks and made up a large portion of the VVS in 1939.
So I'll thank you to keep the insults to a minimum.