I am writing an essay on it and having a hard time finding sources or actual information to work with. By Irregular tactics I am referring to guerrilla warfare (if there was any) or scorched earth tactics. If there are any other tactics that can be considered irregular or out of the common back then just tell me. Thanks in advance
I wouldn't feel comfortable giving you the answer but I can suggest a book for this, Dominic Lieven's Russia Against Napoleon should be easy to find and if your library has it Chandler's Campaigns of Napoleon is the Bible for the era. Good luck with your eessay.
This book http://www.amazon.co.uk/1812-Napoleons-Fatal-March-Moscow/dp/0007123744/ref=sr_1_3?ie=UTF8&qid=1418144509&sr=8-3&keywords=Zamoyski is very good. I would suggest that irregular tactics were of limited significance. That the Russians destroyed some resources on their retreat was clear, but wasn't regarded as "irregular" tactics any more than Marlborough's devastation of Bavaria. It was simply denying resources to the enemy. The Grand Army was defeated by Buonaparte's ambition and over confidence, and it's own over extended supply lines, which were such that the French Army had already lost half of it's men before any serious fighting had occurred.