Honestly, for now I am trying to get into COIN series first if it’s possible.
Hex-boards with military units (all units considered) still seem so confusing to me.
For eras, even though I prefer the 20th century the most, I am perfectly fine with other eras if they are similiar to Twilight Struggle in terms of game mechanics. (i.e: I heard Imperial Struggle was inspired from Twilight so that game is one of those I’d like to give it a try)
I hope this all answers to your questions and didn’t skip any of them.
P.S. : I am still new to VASSAL engine and its modules. It doesn’t seem that hard to get around, just couldn’t figure out how to play P2P and private servers with my mates as of now.