[Evilsausage]

Thing is a King Tiger cost 120 points a Nashorn cost 45.
Sometime when your in a bad situation, For example the enemy got a Pershing or and IS-2 out. That is very well guarded from any infantry attacks.

Then the only way to beat it, is to wait for ages to get JP for 90 points. Cuz Tigers and Panthers just wont be enought to fight it frontally.

But you can always get a Nashorn. It can be risky, specially if the enemy got good line of sight.
But if you control it correctly, and go in for the kill. Theres a good chance that one shot will be enough. A 45 point unit killing a 85 point IS-2 can be devastating for the opponant.

Im not saying Nashorns are always a good option. But if you need a heavy tank killed and got low resources. Nashorns can be a great option.

Crni vuk ISU-152s are one of the best units in the game. But it can sometimes be abit unpredictable. Sometimes it preforms great and iv even lost King Tigers frontaly too it. But other it doesnt kill shit.
Thing with the ISU-152 is that you have to hit the roof armor on units like the KT.
As for Panthers, a He shell in its frontal armor can normaly be enough.