This is the Badass MP7 Sound Set, so it sounds like a gun.
This is the Badass MP7 Sound Set, so it sounds like a gun. The reload sounds are taken from: Youtube.com
The shoot sound are taken from HL2, but tweaked a bit.
Credits to Valve who maked Half-Life 1 & 2.
Copy the Invasion105 Folder to your Half-Life directory and enjoy!
You need this skin to work: Moddb.com