I am the author of "Calendar and Record of the Revolutionary War in the South: 1780-1781," which is available as a free .pdf download at either of the links below.
http://battleofcamden.org/sherman.htm
http://www.americanrevolution.org/warinthesouth.html
My book provides as detailed information as any work available with respect to the units and troop strengths of the forces of both sides, by date, and as they pertain to the war in the southern states 1780-1781. Although the book's scope with respect to time frame and area is limited, it nonetheless is at least one help toward getting the more nitty gritty historical/military data correct.
I post this then as one suggestion toward helping to make the unit, troop strengths and deployments more accurate. Hopefully a future unit AND scenario editor will make this even more possible. Thanks again for a great game!