After a months planning I put on a refight of Ligny at my local clubs show "Gauntlet"
I concentrated on the action involving the Prussian I and II Corps and scaled down the action so Divisions were represented by brigades so about a third of the units involved, but still 60 per side.
The rules were Black Powder with some local variations, in particular a change to the sequence of play. Then for this game I added a role for senior commanders who had to issue orders to their subordinate commanders, which had to be followed until changed.
Overview of the battlefield with most of the reserves committed to action
Prussians crossing Ligny brook and attacking the French left
Quite a few pictures and commentary over on my blog, but not as many as I would have liked as umpires don't always get the chance to take pictures
http://willwarweb.blogspot.co.uk/search?q=ligny