They rationalize 20th century anachronisms by perpetuating farb myths and attacking authenticity. Mainstreamers don't know better, and are satisfied with bad camping, bad uniforms, marginal drill, and haphazard safety. For the most part they represent the bulk of civil war reenacting. In general, Authentics' uniforms, drill, safety, and equipment are very good, but they still live in incorrect camps out of proportion to an army on campaign. In some ways, the Authentics and Campaigners are on opposite sides of the same fence.
Campaigners concentrate on the lifestyle of an army on campaign.
Their clothing and equipment may or may not be top notch, but the attitude to do it right is in full bloom. Not surprisingly, this is the group with the highest growth rate in reenacting at present. Reenactors tend to re-evaluate many preconceived notions about the civil war soldier and how they lived, drilled, slept, ate, and fought at this level. Campaign reenacting can be broken down into sleeping, shelter, and subsistence in its simplest form, ceteris parabis. The Progressive level is where the Campaigners and Authentics intersect.