Activision has launched a countdown to the world premiere of its next Call of Duty game, expected to be Black Ops 2 from Treyarch. states the new game will be revealed during the May 1 basketball playoffs, airing on US cable channel TNT.

The website features a host of "classified" logos, which will unlock over the coming week.

All this ties in very nicely with a leaked poster pointing to a May 2 reveal.