The ratsandspiders.zip file you have requested: Call of Pripyat / Mods / STALKER Rats and Spiders Combat Song - 15.33mb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Call of Pripyat and upload any files you want to share or are missing. This is the only information we could locate:
This adds the song "Rats and Spiders" from Ultima 9 Ascension to STALKER's combat song. It replaces all combat songs, so if you want one of them to stay, delete the themeX_part_X.ogg file in the unzipped folder.