"I certainly didn't agree with the decision to delay our news until sometime after E3," Ryan told Eurogamer. "Bungie is always concerned first and foremost with our fans. Whenever we are prevented from exceeding their positive expectations it is not a laughing matter."
Bungie teased a reveal of its next Halo project on its official website, with a countdown suggesting that more information would be made available during last week's E3 Media and Business Summit.
A letter from Ryan later appeared on the website the day before the scheduled revealing, claiming that "those plans were just changed by our publisher."
Microsoft's Xbox and Games for Windows VP Don Mattrick later told reporters that following the delay, Ryan "just laughed and he said, 'Boy, just a sign of growth inside the business, we agree'."
The executive added that the new Halo title would be unveiled sometime later this year.