Oh, I mean, Mods folder where all mods are stored in Soldat directory. If you dont want replace default files, you can create new folder in Mods directory and make inside your own modification with custom files, also put these files into same folder structure as Soldat, so zloto.bmp zloto2.bmp zlotylancuch.bmp can be copied->pasted/moved to:
Soldat\Gostek-gfx\
Soldat\Gostek-gfx\Team2\
Soldat\Mods\Your Mod\Gostek-gfx\
Soldat\Mods\Your Mod\Gostek-gfx\Team2\