I must add some explanations:
1. Some myths about Gulf War: US Amy fielded in Persian Gulf its brand-new equipment and arms like M1A1HA tanks with M829A1 ammunition. This weapon was relocated from West Germany or even hurriedly upgraded in Saudi Arabia because many of new stuff weren't in service until 1991! In contrary Iraqis had only downgraded export model tanks like T-54/55/59/69 of Soviet and Chinese origin and limited number of export T-72G "monkey model" without laminated armor and with ridiculous BM-12/15/17 APFSDS rounds withdrawn from Soviet service almost twenty years before!
Moreover during entire "1980s" time-period USSR had better APFSDS rounds than NATO. So there was no "crappy HEAT rounds" problem for USSR to solve. Simply Soviet regulations ordered to fire HEAT rounds against older Western tanks and APFSDS rounds at newer NATO tanks.
2. Soviet had advantage in armor up to the end of Cold War! They fielded T-80U in 1985 which was equivalent of US M1A1HA made five years later. Unfortunately well known Gorbatchev's military cuts prevented its wider deployment in GSFG as T-64B replacement. Anyway in 1991 Soviet T-80U had better armor than M1A1HA thanks to its second generation or "heavy" ERA and comparable APFSDS BM-42M round with almost identical penetration level like M829A1 (600mm RHA at 2 km). Also T-80U possessed long-range laser guided supersonic AT-11 ATGM designed to fight Western anti-tank gunships also. Its mobility was better than M1A1HA because of lower weight. M1A1HA was superior due to TI device but both tanks FCS were practically at the same level.
3. Maybe Chieftain was a match for T-64A BUT a small explanations is needed here: Britons manufactured a few hundred Chieftains and Soviets almost TEN THOUSAND T-64s!
4. As for older but modernized Soviet tanks like T-55AM/T-62MV: Simply compare them with older Western designs like AMX-30, Leo-1A3, M-60A1 which were in wide use during 1980s in many NATO countries. I am sure this balance won't be favourable for Western tanks!
PS. Mr. Tucan: You needlessly recommend me some amateurish tank forum to read. I prefer far more up front professional sources like declassified CIA, DIA and Soviet analysis or reports about above issues!
