The winter_modbeta.zip file you have requested: Call of Pripyat / Mods / Winter Mod (BETA) - 13.8mb 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 mod changes the Zone into a winter wonderland. It is currently a BETA version and it may be upgraded in the future.