Bro... Soviet mediums are why Ostheer has good snares against mediums. Ostheer heavy tanks are why Soviets have a snare good against heavy tanks. USF and UKF still follow this pattern because they fight Axis heavy tanks.
They don't impact their own snares because they don't snare their own vehicles. At this point you must be refusing to understand.
That really doesn't make any goddamn sense. The snares are approximately equal when fighting medium tanks, taking two to damage engines in any realistic scenario, the extra 40 damage being meaningless in almost any case as far as breakpoints are concerned. It's only when you reach premium mediums that there starts to be a difference.
Gren Faust vs KV1
140/160 pen) 26%/34% chance to snare in two. 38%/49% (I think?) chance to snare in three, 36%/17% in four.
Generic AT grenade vs Panther
100 pen) 13% chance to snare in two. 87% in three.
In such a case Ostheer has a BETTER chance of snaring the vehicle in two shots, but then a smaller chance of it taking three, and a smaller still chance of it taking four. This is just wildly inconsistent, rather than strictly being worse in all cases.
They don't snare their own vehicles, but they do snare Ostheer ones, and Ostheer snare theirs, despite their tanks being much closer in performance to one another than the Soviets' are. Brits have stock heavies/premium mediums, for example, and both factions' stock tanks are more expensive/heavily armoured than stock soviet ones.
You still haven't explained why the snares need to be inconsistent. That's the main thing I'm attempting to argue. Even if you'd like to accept that Ostheer snares should be "better" against mediums, and Soviet/other allied snares should be "better" against heavies, why does there need to be a penetration calculation, and why is none of this explained at all in the game?