WARNING: Ensure that you back up all custom sound files (.mp3 files) prior to updating the Killshot_Sounds addon as these sound files will be replaced with the default files in this package. After updating, you must convert your custom .mp3 sounds to .ogg and place them in the appropriate folders as before.
Soundfiles for Killshot
Download Killshot at https://www.curseforge.com/wow/addons/killshot