I agree with those above. Super long range heavies shouldn't also has elite call-in infantry, bombing run or barrage to kill emplacement dedicated to fight those heavies. Higher the gamemode the bigger the problem it creates.
Nice to see we agree on some points.
But i wouldn't go so far with the changes you listed later. I mean pershing and rangers aren't the problem that cannot be counter or fight with. Plus what's the problem of concripts repairing ISU? Their repair speed is slow and while reparing they don't fight which cause weaker field presents. Problem starts when more than 2 abilites are very potent and potensially abusive.
Imo problem with AT ranges is that they are some of the best AT units on the game. So they allow to buy AI vehicles and then drop Caloipe or Pershing. If the Pershing gets any sort of buffs it could turn ugly.
Imagine thou that one risks his PvIV in a dive to kill a Calliope only to face Ranger with 3 Super bazookas.
Imo the problem is not that conscripts can repair the ISU, I specifically mentioned the combination of units with damage reduction like the KV-1. 7 men conscripts can repair KV-1 very fast. The KV-1 is all ready a very durable tank for its time frame and being repaired fast only amplifies the issue. Imo there are solution to this like replacing the Damage reduction with HP or breaking the combo by removing one of the two abilities.
i mean in your perfect vision of coh2 every commander with heavy tank should have nothing else. I would more focus on commanders that can counter and fight most on the stuff in game and are mainly without a weak spot.
Imo the power level of all commander should be about the same