Increase side hull armor to 150mm and rear hull to 130mm. Leave everything else the same.
The Ausf B is worse than the E75 in EVERY way except turret and gun, where it is equal. E75 front, side and rear hull is more effective, it has much better mobility and of course better turret positioning.
Now I'm not suggesting we make the Ausf B the same tank as the E75 - I think tactically it will always be a less useful tank anyway. But here are the following two points of the Ausf B which should, in my opinion, define it:
- Strong armor and accurate gun allowing for decent mid-long range combat
- Rear mounted turret and poor mobility which prepares the player to play the Maus
A side armor increase would also improve the Ausf Bs survivability against lower tier tanks. Compared to the other bunker-like tanks in game (ST-I, IS-4, Maus) which with any sort of angle can be very tough for tanks two or more tiers below to penetrate anywhere, the Ausf B is incredible vulnerable as even tier 6 tanks can easily penetrate its side and rear hull unless significantly angled.
So to recap, increasing side hull armor to 150mm (approx) and rear hull to 130mm (approx) would make the ausf B able to fulfil the role I think Wargaming wants it to have. The tank would still be unique and have character, but would be able to fight well if used correctly.
I actually think any other sort of buff to this tank would be a shame and damage its uniqueness and its role, but it IS in sore need of a boost, so please consider the above.