Napoleonic tactics was not used. Tactically the war was much closer to the 7 year war as fought in Europe.These men were a handful of the few men who understood how the war should have been fought given the technological advances, and that Napoleonic tactics were heading for the history books.
Use of 25-30% skirmisher? No
Use of battlefield cavalry? - No
Proper combined arms tactics? - No
All 3 was core part of Napoleonic battlefield tactics... and very rarely used by civil war armies.