This sound is from Flash Gitz Warhammer 40,000 Soundboard

A group of Ork Flash Gitz, led by a Kaptin, armed with their extravagent Snazzguns against encroaching Tyranids. Flash Gitz are an elite breed of Ork Nobz who are obsessed with their lovingly customised, ostentatiously polished and painted weapons known as Snazzguns that can potentially wipe out entire squads of infantry in a hail of fire.