Try a side shot and see what happens +D

It's not the same because Germans don't need to flank. Only the UK Turtle maybe can sit and take damage from German tanks. You say to get a side shot as if it is easy to do. It's not balanced when one faction has to flank and the other doesn't. Then again, history itself is not balanced so it all depends on what the devs want to do. For myself I generally don't join games with the German faction.

Russian Tanks' Armor
 

I disagree that Russian tanks include unresistant armor because historically during W.W.II (World War Two), Russian tanks included the most resistant armor for comparison to other nations that attended the war.