Crackdown 2 exists.
It was shown at the Microsoft press conference tonight. The trailer kicks off with the infamous orb sound followed then by a rooftop chase from your supersoldier chasing somebody. A bullet is then shot from the soldiers gun, but the sound the bullet casing makes while dropping to the ground is enough to stur something from underneath.
The trailer ends with a explosion and the game’s logo. It’s in development at Ruffian Games.