Sorry it is taking so long to put much on this page as I have to confess that I am not a historical wargamer (histerical-yes, historical-no!) I can tell you that a lot of DBM,DBR and DBA is played at the club.
We play quite a lot of WWII, we have players of Napoleonics, ACW and most periods of history.
Rules include Rapid Fire, Fire and Fury and the new set of Warhammer Wild West.
One member has a large collection of ACW ships and another Plains Indians.
So if you play Historical then you will find someone to take you on.
There are several generic armys available for DBM for anyone to use.