Well I use Napoleonic as more of a catch phrase since most people don't really know much about the wars of the end of Pike and Shot through to Peter the Great and the Great Northern War through to the Prussian wars, etc. Most people just know Napoeleon. And yes artillery will always cause the most casualties, barring extreme disease in the army of course. You could also attribute Wellington's victory at waterloo to the inability of the massed french guns to do anything to the majority of British troops behind the reverse slope. I guess you could say the topic refers to 1700- 1940, when tactics that used to be the domain of pure skirmirshers become the tactics of the infantry as a whole.