For the "last battles"? I was thinking more of something like the battle of Brody. The battles in 1945 were characterised more by a bunch of Russian tanks and lots of Panzerfausts with the occasional Panzer in support on the other side.
Just saw about battle of Brody 1941... Wow,this is even better than BoB! Tank battle! 15Pnz2 ,10Pnz3 and 5Pnz4 against 20 T-26,10BT7 5 T-34! Plus 4Stuka and 3-4 some Soviet bombers-no fighters
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What about concept? Germans need to capture middle 4 tank flags while Soviets can attack them from nort,south and east?