David Vonderhaar

David Vonderhaar is Treyarch's Game Designer Director, and was responsible for the development of multiplayer in Call of Duty: World at War and Call of Duty: Black Ops. He is often seen now as Treyarch's unofficial Community Manager.

Trivia

 * Vonderhaar generally announces via his Twitter account when Double XP weekends will take place.
 * David Vonderhaar's head model is used on some multiplayer character models in Call of Duty: Black Ops II.
 * In Call of Duty: World at War there is a soldier called Vonderhaar.
 * In Call of Duty: Black Ops II, one of the setup bots is called D.Vonderhaar