From Halopedia, the Halo wiki
Zach Russell, aka YeanlingRumble, and classified as GrizzledAncients is the Head of Infrastructure at Bungie. Born in Scappoose, Oregon, he was originally a tester for Halo: Combat Evolved. In 2004, he worked on the Bungie.net webpage revamp for Halo 2, doing programming and architecture alongside Tom Gioconda and Roger Wolfson. Zach enjoys skiing, working, and playing video games.