This mod will change the Pyro's voice for the Postal Dude's voice. The .rar file contains the Postal Dude's voice from POSTAL, Postal² and Postal III, so you can choose which one sounds better to you.
To install just drag one of the folders inside the .rar file to: C:\ProgramFiles\Steam\SteamApps\common\Team Fortress 2\tf\custom
In Postal (1), the voice heard in gameplay played by Rick Hunter isn't the Postal Dude, it was intended for it to be another voice, possibly of supernatural origin, in his head commanding him to kill. This is verifiable by the fact that within the game files, Hunter's voice clips are labelled as "demon" and that, when taking damage, the Postal Dude's grunts and screams sound nothing like Rick Hunter
Running with Scissors for POSTAL series
Rick Hunter for the "Demon's"(POSTAL) and Postal Dude's voice in Postal²
Corey Cruise for the Postal Dude's voice in Postal III
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