Infinity Ward creative strategist Robert Bowling, better known as fourzerotwo, resigned from Activision today.  He made the announcement over Twitter.

"Today, I resign from my position as Creative Strategist of Call of Duty, as a lead of Infinity Ward, and as an employee of Activision," he said.

A reason for why he left the company was not provided at this time. Activision said in a statement released to Game Informer, “We sincerely thank Robert for his many years of service. He’s been a trusted and valued member of the Infinity Ward team.  We wish him all the best on his decision to pursue future opportunities.”

Game Informer followed up with Bowling for additional comments.