I ran the fictional early war scenario "The Battle of Rabid Rabbits Rapids" at Peanut Wars this past weekend using From Manassas to Appomattox by Hoplite Research. Both sides had equal forces of six infantry divisions, two cavalry divisions, and six battalions of 6 pound smooth bore cannons. The union army was organized as two equal sized corps of three infantry divisions, one cavalry division, and three artillery battalions. The union elected to keep all their artillery batteries under corps command instead of assigning them to each division. The confederate army had the two cavalry divisions under one corps commander and the infantry divisions under the other corps commander. Each of the infantry divisions had one of the artillery battalions assigned to it. Each infantry and cavalry division had eight stands. Game scale was one inch = 100 yards, each infantry stand = 500 men, each artillery stand = 12 guns, and each cavalry stand = 300 men. For smaller battles there is an alternative game scale where one inch = 50 yards and formations are brigades instead of divisions.
Another view of the battle field. Objectives were control of the two towns with the railroad and/or driving the opposing army from the battle field.
"Yeah, they ran through the briars and they ran through the brambles
And they ran through the bushes where a rabbit couldn't go.
They ran so fast that the hounds couldn't catch 'em
Down Rabid Rabbits Rapids as fast as they could go."
At this point the battle was called. The confederates won a close victory. Both sides held one town, but the union had suffered more casualties than the confederates and the confederates had captured three times as many prisoners as the union had (1500 to 500).