Wasn't there a rumour going around about a Warhammer Historical ACW ruleset? Has anyone heard something about that project again?
Wargames Illustrated also printed an article set of ACW rules by Paul Stevenson using Warhammer Fantasy in 3 sections. October 2004 (issue #205) had the basic rules, whilst
November 2004 (issue #206) has the Union lists and December 2004 (issue #207) has the Confederate list.