Developers at Bungie ready to spring new heroes in the 'Halo' universe

All sorts of changes are under way inside the dark and mysterious Kirkland bunker where Bungie, the renown game studio, is putting final touches on the next version of "Halo."

For one thing, Bungie is going into a dramatically new direction with "Halo 3: ODST," the latest installment in the blockbuster sci-fi shooting franchise that established Microsoft's Xbox console and has sold more than 27 million copies worldwide..