PTAB and Sturmoviks

[dimlee]

It seems to me that IL-2 classification suggested by Oleg's team was rather confusing.
If I'm not mistaken, we have in stock game the following:
- 3 series of "1941" and field mod.
- Type 3 and Type 3M.
- M "early" and M "late".
- NS-37 equipped type.
(not including T and I).
But when I look into historical sources I see no such names as "Type 3", "1941 serie X". I can find IL-2M and IL-2M3, but not M "early/late", etc. And total number of modifications was probably less than we have in the game, if we ignore experimental ones.