Looking for easy army group to start with? Play Slovak.
- First use all of your Troops to invading Poland together with German Army Group D's helps
- After a few turns (or longer) the Polish is down and you should have some city occupied (Ex: Krakow or Lublin or Lviv...)
- Then start funding your allies but mainly focusing on Romanian Army Group A and Italian Army Group West and Hungarian Army Group if they're been outnumbered by the Yugoslavs
- After the French and the Yugoslavs have been occupied by your allies. Now the British are no longer threaten so German can take over them easily
• I finished this Army Group mode in 33 Turns as the Slovak using 4 default generals
(I'm sorry if my English is bad or smthg.)
Germany group D: take Poland (very easy only need to attack with all at the start)
then take deenmark (only recruit infantry and use your ship to kill the general)
(Declare war to Lithuania for extra territory)
then steal things to your ally until you can attack French (use iron will in Berlin and with those thanks attack France)
britain can be conquered easily because your ally will be attacking the british units you only need to use mass airlift to pass some tanks to the island
then take France and in 20-30 turns you will win easily
PD: i do not use translator for this post so sorry if there is a grammatical error