I don't really like ww2, neither games about it but this one was recommended to me for its realism. there are three games of it, CM: Beyond Overlord (western front '44 to '45), playable nations are Americans, Brits, Canadians, French, Poles and Germans. CM: Barbarossa to Berlin (eastern front '41 to '45), playable nations: Germans, Finns, Italians, Hungarians, Romanians (axis and allies), Russians and Poles. and finally, CM: Afrika Korps (North Africa, East Africa, Crete and Italy '41 to '45), playable nations are Germans, Italians, Brits, Americans, Canadians, Australians, New Zealanders, South Africans, French and Poles.
the game is turn based, not not in a classical sense. there is a command phase and an execution phase. both sides give orders and then confirm. then, both orders are executed simultaneously for one minute, then the turn is over and you give new orders if necessary or just adjust old orders according to the situation. usually there are 30 turns (=30 mintues) but can be up to 50 i think, but that many are only necessary for really big maps. as already mentioned, realism is what makes this game sweet. tanks have realistical armor thinkness and guns have different calibers, and lenght of the barell are also important on logn range duels. it is also possible that the armor is oblique and balls simply ricochet off. there's much more to say, simply check the website: www.battlefront.com
for me, the realism, the different nations and division types (Romanian cavalry vs Hungarian garrison ) or motorised Waffen SS vs motorised Red Guard, Polish paratroops vs Volkssturm, Red partisans vs italian bersaglieri, South Africans vs Gebirgsjger...everything possible here...
here are three screenshots from the second of three scenarios about Kursk in CMBB. I will also post screens from my other game as Romania vs Hungary in Transsylvania: