Thanks Jim. You ARE in! I'll send some stuff soon. Knowing R2E as you do I think all of the logic will be clear.
The text has been higely thinned down and a lot of the Napoleonic naunce has come out obviously.
The main mechanical similarities are in:
Orders (but not all the same)
Command and cointrol
Exploitation
Firing
Combat
Morale
The big differences are in:
Unit and brigade construction
Formations
Troops classification
Weapon types and ranges
Some new stuff.
I have been working on this for a while as ACW has always been an interest of mine. What prompted the real work was actually the Crimea... having done a fair bit of research and trying mechanisms I realised that the transition point for any change to R2E was NOT 1854. R2E can play almost unaltered for the Crimea except a little bit around rifling, artillery and cavalry classification (Light and Heavy diffferentiation is not necessary)> The real transition point is probably about 1861 or 1862.
The ACW version.. still to be named, is positively anorexic compare to Naps but the games I have played so far are fast and bloody... just like you like 'em in Dumfries!!