I was looking through a PDF copy of MWAN 101 which includes a great article by John Stafford on gaming with 6th graders. There is an introductory piece which includes a brief description of how he devised the game and a battle report describing how the game went. At the end of the article is the rules used for this game. It is based mostly on the On to Richmond rules from back in the early 80s. The game uses a pair of 6 sided dice for all mechanics. The rules fit on about 3 pages really. From what I gathered from both the article and the rules sheets, the game is scaled at about 700 men per stand and each unit is about 1 division. Confederate divisions are quite large compared to their Union counterparts. If running this, I would arbitrarily make confederate divisions 2 roughly equal units which together total the entire strength of that division. The other thing I would add is a penalty for under strength units at -1 per stand less than 6. I would also allow a second shot with a unit that has more than 6 stands at the appropriate penalty. Thus, an 8 stand unit would get 1 shot at full strength and a second shot with a 2 strength (ie -4) to the die roll. This is a brilliantly simple set of rules and is well worth the price of the magazine. I am looking forward to giving these rules a try with my son.
MWAN 101: Gaming with 6th Graders