All good points here, I will add some too.
German infantry likes to go in the molotov, even if you dodge it the AI will jump right back in. That only happens if they were in green/yellow cover and you move them away.
If you order MG42 to go out side from a building and there is enemy near by they will immediately unpack before you even press the "retreat" button. I don't want them to unpack but retreat to base, 99% of the time it gets them killed.
In coh1 never lost a squad/s to satchel, but in coh2 there is no escape. Sometimes units tend to freeze for a second before retreat and that is what it takes to get them killed.
Again the AI needs to be fixed... why would the germans bunch up in one place? They will become one "monster" with 8 arms/legs you get the picture. So they get one shotted by t-70, t34, su85.... I didn't notice this happening with soviet infantry. Also tanks need to have set targets, so they target enemy tanks and not infantry why being killed by other tanks.
