18-Year Call of Duty Veteran Announces He’s Leaving Activision Share Tweet After 18 years, David Vonderhaar, the studio design director at Treyarch, announced he’s leaving Activision after shipping eight Call of Duty games since 2004. Read more… Click to comment Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.