1) haven't noticed that happen... i'll post it in the beta forum for some other opinions...
2) i believe the weather matrix is being tweaked. the percentages for snow are low...but snow still occurs way to frequently in the late spring/early summer
3) the California Brigade is a PA unit...later became 71st PA Vols...see: http://en.wikipedia.org/wiki/California_Brigade
. As for the other units....this was a problem in some of the early betas with militia, don't recall it occuring with cavalry units tho. again, I'll post in beta