6mm Blucher
A few members of the Swindon and District Wargames club have played Blucher over the last couple of years and there are now a wide selection of armies available.
In March 2017 Peter David and I had a go at refighting Austerlitz using the rules. There is an extensive library of scenarios available produced by fans of the rules, some of them produced in a really professional manner. I found one which suited what we had in table size and units. Peter chose to be the Russians and Austrians given he had recently received a beautifully painted Austrian army, whilst I took the French.
We had a great game and we had to call the game to a close due to time, more due to us faffing around and wasting time rather than the scenario being too long for a single day play.