Duuring is here, to mess yo shite up!
You're confusing Voltiguers-companies with the Voltigeur regiments.
The voltigeur companies, simply 'the light company' and the Regiments 1-6th were pretty good. Then after 1812 everything goes to shit. The 15th was nothing more then a bunch of young conscripts given guard status to keep them in the regiment, which often they didn't. Desertion rang high, just like diseases and underfeeding. Millander has got written down pretty well.
That uniform picture is nice, but it's pretty theoretical. Men being issued a perfectly regulated uniform after January 1814? Oh no. Nonononono. The allies had invaded France at that point. It was all 'Here's your musket, here's your bayonet, we ran out of bullets, good luck'. Men being sent of to fight without even as much as a single instruction how to load their musket. I bet my hat collection that the 15e never, and then I mean NEVER, saw action as light infantry proper. They probably just got a greatcoat as these things were pretty easy to make.
Now let me feast upon thy shattered dreams! Muwhahaha!
