Nato got nothing to counter T80 series and T64BV. The Jaguar 2 shot 4 atgms with none hitting.
I think, Leo1a1 would be enough to counter T-64BV. Just aim it's side armor. No one will trade 130pts unit on crap army. MT-LB Shturm-S disappoints me almost everytime when it shots, because it's hit rate is very low too. 10/11 would be fair for it's 55pts. Remember, Jaguar2 for 60pts has superior stats.
On the topic: just use Leo2/M1A1 with Jaguar2s on the flanks. Your opponent will think twice before attack. At least, I have problems with this mix.
I believe that Nato atgms need a serious buff. At least in accuracy <...>
Nope. NATO have at least three vehicles with 10/11ATGM, while the best PACT ATGM is 9/11. New tank balance seriously limited ATGM usage especially for PACT (as PACT have more ATGM units). ATGMs are balanced now for both sides.