I didn't find a similar plugin on the forum, so I decided to write one myself
Changed the death sound of players killed by Taser
You can add any deathsound you like in configs/tasersounds.txt,
And dont Forget update deathsound in your fastdl
GitHub Link
https://github.com/bklol/FakeTaserDeathSound
Please let me know if there are any bugs or suggestions.