I do think two things to do with it could be rebalanced.
1) That it kills a howitzer in one. Obviously the howitzer can't dodge it and that's 600 mp down the drain as soon as it's revealed.
2) The Elephant doctrine has it. Which eliminates one of the few things that can hurt an Elephant - a howitzer/b4.
I'd like to see those things adjusted. Otherwise, it's fine.
In 2 on 2 at least one player nowadays has to take the Elephant doctrine while the other one mostly takes Speerhead.
B4 kills all the German Tanks and the Germans can't do anything BUT Recon + Stuka.
So I think 240 Ammunition is a lot to kill a single howitzer that can be rebuild.
Elephant is expensive as hell so there won't be a lot more other tanks around. Flanking is the key because unlike ISU-152 it won't kill a single man in 1.000 years.