As any good sound designer knows, for the right sound you need to go to the source. Halo Developer 343 Industries has posted a video of one of their more involved recording sessions out on a desert firing range. They fire off machine guns, assault rifles, and mortars to get the samples they’ll sweeten into everything from small pistols to Forerunner death rays. I’m hope that they giv Master Chief’s assault rifle an update. Halo 3′s battle rifle makes it sound like a dollar store toy.
Source: Halo Waypoint