produced one of the more successful viral marketing campaigns ever, in this case for Halo 2, incorporating an Alternative Reality Game. Now the site has begun another A.I. countdown and it is widely believed is is for Halo 4.

Another website called TestSubjectsNeeded is registered to the same team and has users complete some tests before signing up for an unknown project. That takes users to another website called Mission Ice Fly with a countdown timer set to expire soon, with implications that users in several cities will have to pick up a package at each particular location.