You can totally do that already. There are 14 M1A1 available in a US deck, and roughly the same of every t80/t64/t72 line barring prototypes and the top most tier. People just cant get off the min-max train and skip right over these medium heavy tanks all together.
Again Candyman, you don't understand what I wrote. I'm sure a lot of people are not pleased right now with having low availability on modern tanks(units in general), because we're being held back by tanks(units) from the 40's, 50's, 60's and 70's. And 14 is nothing when we should be fielding more. Like The M1 Abrams and T-80s should be fielded as an availability of a T-62, While M1A1s and T-80U's should be fielded as an availability of M1's, while M1A2s and T-90's should have the same availability as current M1A1s. . We should be having more modern combat and units since we're in 1992, not 1975.
Yes keep units such as T-72s and more modern T-55s, but cost lower. But Eugen don't hold us back because you want to keep the really outdated units.