Clearly, the Scout is a fan of the yobbishness of Loadsamoney, and has bought a cassette of his greatest hit. Now you can tell people to shut their mouth as you cave in someone's skull.
No read_me.txt included, but you can use your common sense. Just in case you can't, here is a file path for the installation.
For Windows: C:\Program Files\Steam\steamapps\yoursteamnamehere\team fortress 2\tf\sound\items
For Mac: Application support\Steamapps\yoursteamnamehere\team fortress 2\tf\sound\items
Software used: Audacity