La Bataille de Wavre (with Mont St Jean link)
This VASSAL module has a scenario for Wavre alone, Mont Saint-Jean alone, both battle together on the same huge map (provided by Rick Barber) and/ or can be used by players to follow up on the earlier battles of Quatre Bras & Ligny.
Please note the Allied and French "Label" Marker. This marker is very useful for PBEM. I use these markers to define the Fire combat and Melee e.g. A Fires at 3 etc. rather than type the unit ID: French Artillery Btty B fires at Prussian Inf 1/5. Saves playing time.