Need help unpacking (STALKER: Shadow of Chernobyl)

Hello everyone! I decided to dig deeper into the files of the game, downloaded unpackers ... BUT none of them unpacked, then the file is not supported, then the completion of the unpacker. The game is Steam, rolled back to version 1.004. In general, can anyone upload the unpacked files? Well, upload it to the same Yandex and throw off the link?