Actually, the Army Group South encountered the most modern soviet tanks in larger numbers, since the soviets concentrated most of their armoured formations in the south (Ukraine). If you want more info on the Red Army before and early in the war, read "Stumbling Colossus - the red army on the eve of WW2" that is one good book on the subject with lots of research effort gone into it.
In August of 2004, Zappi, Homba, Bambam887, RedScorpion and MOOXE all pitched
in to create this Close Combat site. I would to thank all the people who have visited
and found this site to thier liking. I hope you had time to check out some
of the great Close Combat mods and our forums. I'd also like to thank
all the members of our volunteer staff that have helped over
the years, and all our users that contributed to this site!