OPTION to change headshot sound

I liked it at the start but now it’s just ruining my halo beta experience. I have an epic gun fight then hear a pop of a bubble. I know kids will probally play this game too, so the devs can’t have Gears of War type headshots.

Anyone know if there is an option to turn it off?

I really hope that there will be an option to turn it or or even change it to different sounds! (That would be awesome)