Edited from "O_17P.wav" from the Free Firearm Sound Library Page
https://opengameart.org/content/the-free-firearm-sound-library
http://creativecommons.org/publicdomain/zero/1.0/

Edited from "laser_sustained.wav" by ledhed2222
http://freesound.org/people/ledhed2222/sounds/397280/
https://creativecommons.org/publicdomain/zero/1.0/