lvl42 here and it feels like my Commander sprints while my tanks stand still.

I've solved part of the issue by rearranging my emblems and prioritizing the front line (first row of tanks)
Where the heavies are now super defensive and the dps is stuff that hits the enemy.

4* Tiger I -> 4* JagdPanzer4 -> 4* Centurion mk1 -> Cmdr. Armor Buff on Tiger -> Off-tank or more Dps or Cmdr. Armor buff on tiger or my Stug IV (If I am lucky enough to "draw" her)

The Tiger is 10.1k dur, but will still be inches from destruction or be destroyed. But mostly she'll make it.

The two Focus fire tanks is the key for me, because they have range (keeps they out of trouble most of the time) and they hit, each time for 20 seconds far as I can tell (and Focus fire regens fast too). At a combined 600 dps on them with high penetration etc. things don't exactly melt, but they do die at a very solid pace that sees me through (short of a Maus blocking).

Does go wrong at times in which case I am left with a smashed tank force. But I'd say about 95% of the time the initial Panzer Wedge makes it through at 0 to 2 tanks lost (today was 0)