Hi Doran,
lots of discussions in the past over this very topic.
As it is light infantry does not perform as you described (to my own disappointment as well)
The chief reason is that there is a fixed number of units : one hundred.
You can parcel out reserve from a unit to another but you can't split a unit up (100-140 men)
Minimum number of men represented graphically is 250.This goes for Cavalry as well.
Behavior of light units is similar to line infantry, such as it will deploy in a line and
open fire and or assault the opponent line if morale wavers precipitating a rout.
Further, the element of ground complicates matters. All ground is traversable by all arms
except artillery and cavalry (they keep to the center of the road in a built up area) there is no
difficult ground as such (except for marsh) rocky outcrops, lined fences (wood or stone), canal ditches dry or
wet, sunken roads, sand or rock pits, no height that can't be traversed directly (no path along a road needed)
Therefore no specialty, only slightly higher morale and fire coefficient.
Presently a regiment of regular line infantry can easily take a position in a town or a light wood and defended it.
This division is possible, the light regiments of average 3 battalions in separate battalions,
however this design will force the 100 unit maximum rule again.
I wonder if a graphic behavior can be designed to achieve a series of small lines, maybe in checkerboard
open order formation which are constantly firing and advancing, and when required reorganize in regular
3 deep lines, to assist and move (retreat and traverse through the friendly lines) on the flanks -left or right- of the regular lines as they arrive;
or a rotating 3 bn regiment with 1 bn always in open order once the specialty command was issued (similar to the NTW skirmish button) and 2 in line, without the 100 unit penalty.
These and other topics.
Best Regards