I've always preferred to read and learn about the Eastern Front. The massive amounts of soldiers, logistics, weather and the vast areas of the battlefields are nearly of mythological proportions. CMBB is absolutely phenomenal in its approach (congrats to battlefront.com!). Anyone who doesn't own this game and CMO is missing out.
"The Eastern Front of World War 2 has many lessons for the West of today, but they are seldom studied."
Lieutenant General Johannes "Macky" Steinhoff, Luftwaffe fighter pilot, 176 victories (6 victories while flying the ME 262)
