After thirteen years with Treyarch, Jason Blundell is leaving the Call of Duty studio. In his statement posted to Twitter by Treyarch, Blundell didn’t comment on his future plans. To see this content please enable targeting cookies. Manage cookie settings — Treyarch Studios (@Treyarch) February 28, 2020 Blundell, who joined the studio during Call of Duty 3 development, was a veteran lead of the various zombies experiences for the series and most recently worked as a co-studio head. Thanks, Gamasutra.