Tiger Ace rework
While not necessary balance wise, this would help the Tiger ace and the 2 commanders it is in be far more unique, preventing them from being so similar to the other tiger commanders.
Right now, the Tiger ace is very similar to the normal tiger. For a slightly higher price, you get Blitzkrieg by default, can survive one more shot, can use emergency repairs and at vet2 suppression and longer sight range through spearhead.
This rework differentiates the Tiger Ace from the Tiger by focusing the Tiger ace on anti tank, as compared to the generalist Tiger. I think this also fits the name better, as Tiger aces were aces for the number of tanks they destroyed.
Rework:
Main gun AOE removed
Range increased to 50
“Blitzkrieg tactics” removed
“Spearhead” replaced with “overwatch”
Overwatch:
Requires veterancy 1
Locks turret to 90* frontal arc
Disables firing on the move
Decrease max speed and acceleration
Increases range 60.
Emergency repairs changed to require veterancy 2
That's an elephant with extra steppes.