Cool - thanks
Actually been thinking about this a little more. Were there many examples/cases in the Civil War where local knowledge was used to help scouting etc or get information?
Seems to me that if say a Union Corps is deep within totally hostile territory then local information could be of a benefit to commanders - info on types of unit, numbers, where they were etc. I know a lot of this would be rumour and untrusted but would this not give a 'bonus' to the defender's understanding of what/who he is up against rather than purely going by the units and their comparative ratings?
For example I remember wargaming years ago using a computer rules system like Follow the Eagle or Eaglebearer, and in campaign mode it produced a list of 'intel' such as '2000 cossacks in such and such a place' that was usually vastly exaggerated

but added a lot of flavour. I know this is not done to that detail level and is not needed but some of the reports you get on tooltips seem extremely vague and seem to make a lot of engagements pure guesswork. Especially given two week turns too when there would be more opportunity for gathering info