HI! I thought I'd drop by and check out your M60s and Leos. Ooops. Oh well, they looked impressive while they lasted.
A relevant and related article from FoxTrotAlpha on the T-90: http://foxtrotalpha.jalopnik.com/what-america-can-learn-from-russias-cheap-but-deadly-t-1540829820
Well, depending on what the Turks and Russians end up doing, they might have actually done better with their upgraded M60s. The Israelis developed the upgrade packs for them:
https://en.wikipedia.org/wiki/Sabra_%28tank%29
Note the ERA armor - that the 2A4s don’t have.