why is the topic GLOBAL 1939?
1942 0r 1939?
which time period do you like to start at 1942 0r 1939??
Neither for different reasons.
1939 Starting date imho is pointless because we all know that Norway, Western Europe and Balkans will have to fall and Italy has to join the Axis for Balance purpose. It offers players very little other than constantly repeating almost the same historical outcomes from 1939-1941.
1942 date is not good either because the most interesting parts (Barbarossa/Japanese Expansion) are passed and left the players very little options.