Let me offer something a little different, my solution to the problem of Soviet body armor.
I prefer a slightly different solution—to give ALL factions body armor in customization.
For the Allies
MRC Body Armour for British
And this for USA

Yes, it’s not entirely historical, but it was developed before the end of World War II, and besides, we already have the T20. It won’t get any worse.
For Germany
Sappenpanzer
Yes, I couldn’t find any photos of it being used in World War II, although I did find some references to it. But… we have Americans with T-20s and M1944 Hydes fighting Japanese with Type Hey automatic rifles, Tokyo Arsenal submachine guns, Type 100 double-barreled machine guns, and Ho-Ris. How historical is that?

Besides, it has been lying in the editor for a long time.
And sometimes German use captured Soviet Body armor.

For Japan
Bulletproof clothing type 92
The so-called “new type of body armor for officers”


Type 3 individual body armor set.


**Bulletproof vests of arbitrary commercial type, from the period of the Shanghai Incident of 1937.
Specifically, the “Army Officer’s Bulletproof Vest” (陸軍将校 防弾胴衣) model developed by the East Asia Industrial Research Institute is structurally classified as the flexible Andō-shiki type.**




They are already in the game, worn by premium Japanese motorcyclists. So maybe just move them to the general customization for Japan?
And that’s just a small part of it; Japan actually had a lot of armor.
In general, my opinion is that the bonus for Soviet body armor should NOT be removed. All factions should simply be given their own body armor for customization, and everything will be fine.