What are you on about.
Explain to me how a 25% received dmg increase is a bigger loss to the survival of a 6/6 unit, than a 4/6 unit.
I habe no idea what you are talking about.
lets say all units recieve 100 damage
100*.25=25
25*4=100 German receive 100 extra damage
now apply that to soviets.
25*6= 150 soviets receive 150 extra damage.
in theory the same attack does more damage to the 6 man squad.