Use F13Tools to unpak the game.
Watch this video for how to unpak the game: https://www.youtube.com/watch?v=3h6NpQX4M9A
Also, if you want trainer(mod menu) You can download that from here: https://mega.nz/file/nvJH1C6L#qtz8SrBPeTeLNaKCmdQ4zrvf4n4PJwL7QUAF1I4H8xE
File Name: VZVX Trainer 3.0V.rar