A sequel for Microsoft’s hugely popular Crackdown was announced today during Microsoft’s E3 Press Conference. Crackdown 2 is being worked on by newly announced developer Ruffian Games and not the original devs, Realtime Worlds.
In Crackdown, co-op was a huge factor, especially since you were able to easily drop in and drop out of games, Crackdown 2 will allow players to also face off against each other in competitive play with up to 16 players.

[...] looks like one of the Xbox’s heavy hitters, Crackdown 2, has just received an official release date. July 6th is when you can expect to get back into [...]