Activision's lawsuit with former Infinity Ward developers revealed the agreement.
Activision's high profile development deal with Bungie, creator of the Halo franchise, was revealed during the equally high profile lawsuit between themselves and former Call of Duty developers, Jason West and Vince Zampella. The terms of the deal with Bungie weren't disclosed when the information originally came to light, but the lawsuit has revealed the full scope of the agreement. The 27-page contract states that Bungie is to develop four "sci-fantasy, action shooter games," code-named "Destiny." The titles will be released every other year, beginning in the fall of 2013.