David Vonderhaar

Vonderhaar joined Activision to become a quality assurance tester, web designer, and online manager for several titles. In 2006, he led the design of Call of Duty 3 and several other Call of Duty games developed by Treyarch. He designed the multiplayer systems for Call of Duty: Black Ops and Call of Duty: Black Ops II, along with the campaign, multiplayer, and free run modes for Call of Duty: Black Ops III.^[2]

Vonderhaar led the design systems for the campaign and multiplayer experiences of Call of Duty: Black Ops 4, before transitioning to full-time development on Blackout after the campaign mode was cancelled.^[3][4][5] He also worked on the multiplayer of Call of Duty: Black Ops Cold War and its Fireteam modes.^[6]

On August 18, 2023, Vonderhaar announced that he had left Treyarch, after eighteen years.^[7][8][9] He established NetEase's company BulletFarm.^[10]

Vonderhaar has a competitive-focused agenda and is inspired by Esports gameplay design. Vonderhaar has spoken on the development of League Play, a competitive mode introduced in Call of Duty: Black Ops II, and their goal to make Treyarch games "fun to play, and fun to watch".^[11] Starting with Call of Duty: Black Ops, Vonderhaar worked closely with competitive players and Esports professionals to improve the spectating and gameplay experience of Call of Duty.^[12]