So also ISU is OP as fu*k? Way higher fire-rate, and also long-range.
A long-range Sturmtiger would be like a call-in ability, which can be destroyed.
The isu, last I checked anyways only has 70 range. It used to have 100 way back but it was reduced because apparently highly armoured and mobile units with boat loads of health being able to fire 2. 5 times the range of normal tanks is pretty strong
Picture this: calliope, like it was at launch with the same health and armour as a Sherman. But with MORE health and MORE armour and instead of saturating an area, it drops a nuke on it.
Or how about this:a b4 but instead of being able to be off map deleted in a second.... Well it can't be. And instead of being able to get a cheeky flanking squad of the cheapest unit you can muster to get up on it and wipe its vet, you need a full on tank and 6 shots, maybe more because odds are some will bounce...
Huge durability, mobility, potentially devistating payload extreme range. Recipe for poor balance.
Being able to nuke an su85/firefly from 1.5 their own range while also being able to outlast them? Please think this through....