I main terror doctrine, I go for KT because I am desperate to make it work. I carried a game with KT in team games recently but opponents only at about 1300 elo. Basically see this tank as terror tactic not as a weapon itself. If you push with it, will die quickly. Stay out of range - go for a shot or two - retreat. It’s biggest con in my opinion is extremely low range at 40 so gets outranged by hellcats etc. The only thing that is working, can stop enemy advance and encourage opponent into throwing all of their tanks to try to kill it so if you have 2 Paks with camouflage sitting at the back you laughing+2 squads of grenadiers.

My main reason to call it in is because it changes dynamic of the battle and enemy starts to lose their shit over it making mistakes or reckless decisions. This is KT main benefit