I’m new to Vassal. I installed the modules for Maria and Guns of Gettysburg and I’m searching for opponents for play-by-email in any of those. I’m not an expert but I’ve played both games over-the-board - however, I’ll be struggling to learn how to use the Vassal interface, so please bear with me 
I’ll guide you through a VASSAL session of Maria. We need one more player.
Awesome! Who wants 
to join us?