6th Wisconsin Volunteer Infantry Regiment "Calico"

The 6th Wisconsin was raised at Madison, Wisconsin, and mustered into Federal service July 16, 1861 for a term of three years. It saw severe fighting in the 1862 Northern Virginia Campaign, fighting at Brawner's Farm during the early part of the Second Battle of Bull Run. During the subsequent Maryland Campaign, the 6th attacked Turner's Gap in the Battle of South Mountain, and then suffered considerable casualties battling Hood's Texas Brigade in the D.R. Miller cornfield at Antietam.

The 6th Wisconsin is under the Dalerins gaming community.
http://thedalerins.com/