This sound "mod" has been made because I found the original sounds in the game a little tame for my own taste, but you may not like what I like, and it would be prudent for you to go through the sounds before installing.
You can choose to only install those sounds you like, that way you won't have any unhappy surprises when playng, or you can just install the whole bunch at one go, it's entirely up to you.
Anyway you choose to do it is fine, but it would be a good idea to back up your original cossacks sounds before starting.
Place the sounds you want to use in your Cossacks/sounds folder.
This is a list of files that can be replaced (45 sounds):
ZdBashnia: Tower (not Turkish/Algerian)
ZdCerkovRus: Russian Church
ZdDiplom: Diplomatic center
ZdKazarma: 17th century barracks
ZdKazarma18: 18th century barracks
If you listen to the sounds before installing you may notice some static noise, this will not occur in the game, all the original sounds have this as well, and all new sounds are the same quality as the old ones.
If you have any hatemail or praises you want to get of your chest about this product, you can write a comment here on the description page, or you can mail me at firstname.lastname@example.org