Glad to see someone else playing 1812 .
1) yes mate
2) If you are using B.G which i think you are, you should be ok as the ave unit size is 16 figs.. its not about casualties its about managing them D.Ps
i must say B.G takes a bit longer time to play than GdB ..
I play both B.G and GdB in 1812 and find it very hard for the militia to stand up against british line under the GdB set of rules.. But they never did !
Happy gaming Dave.v