Here is the Taamvann mod
Option taamvan Changes the control of Novgorod, Volgograd, Russia Objective to 3 PUs for Germany. Control of Caucasus is also reduced to 3. Also adds a Fighter to Russia and a Armor to Urals.
taamvan is an experienced player and has had good luck using the above.
It has the advantage of small changes compared to BM, which has a lot but is very popular with experienced players.