This is something that I love/hate about HOI series. Everytime I start a game, every time (maybe not 100%, but 90%), I see a patch note... and it contains a few items I deem quite strong in terms of game balance. Just to pick one, which I'm not sure of it's true "impact potential" but having the underground bases take twice as long and cost twice as much. Sounds to me like this is some serious re balancing. So I can keep playing my game now, fully knowing that I'll most likely encounter some balancing issues. OR... quit, patch, and start a new game...
The worst was pre or post Semper Fi, when the AI was having these insane WW1 face offs around certain straights. Or the one where the US was only building convoys. Everytime I see these types of posts, I double check my game to see if they are occuring and most of the time they are. You should have seen my face with my GER game when I saw that the US had almost no navy except a sea (haha) of convoys. All that planning/organization gone to hell.
This time, i don't care. I'll finish this damn game!