Its pen played a bigger role than anything in making the low ROF unsustainable.
It was an odd duck back then, able to nuke infantry every 10 seconds but could lose a duel with a p4 due to its pen. If I recall that was before range dependant pen as well eh? (damn this game has come a long way) so it could be tried again and better tuned now that it's aoe has been made more balanced and heavies are not unlimited and now tied to tech.
Not sure its necessary at all to do so but the game has changed so much since then that it didn't work then doesn't mean it wont work now.
That is true, on other hand that would mean one would have to use the IS-2 with hold fire and move, fire, backpedal for 9 seconds, rinse and repeat and a doubt that would something player would like.
Anyway this thread is about KT and not IS-2. The KT seems a bit expensive compared to other Super heavies that currently seem to be used allot, since it has both a higher tech cost and higher price. It only advantage seems to it does not take a slot.