Marshal,
Empire is 1 fig equals 60 men. A 12 figure unit is 720 men.
If we just used the number of stands the actual figures were on that would be 4 stands and that unit would be at a -1 right off the bat. So to increase "stands" we just decided to divide the number of figures by two. So now instead of being 4 stands at -1 they are 6 stands at 0.
Yes I do understand the consternation regarding guns. I did the exact forumla for firepower that you just illustrated!
However I found that speaking with guys who have been playing RF&F they did not see an issue with this.
If you are going to charge a gun at point blank range the gun will be at 20 points yes, but that is a +6 to your die roll.
The best you could get would be Withering Fire which is deadly but doesnt really result in too many stands being killed. Just dont charge fresh guns ;)
I think the bigger question to ask yourself is what am I really wanting to do with these rules. For me my answer was simplicity. I didnt want to get too bogged down into numbers and charts. If I did I will just play Empire with my other group.
But for an easier set of rules to play and get the feel of Napoleonics we found that these rules work well. My friends who play Napoleons battles as well as Empire really like the fact that we can get in a big game with little to no arguments!!!!
In the long run if these dont fit I am going to look at Shako2.