The Official Playstation Magazine issue for December 2007 reveals the 7 secrecies of Killzone 2.
* According to the developers, downloadable content will be developed after the release of the game
* The environments are destructible (walls, columns, vehicles, etc.)
* The "Hit Response System" will target the body parts of your opponents, for a devastating fire!
* Killzone 2 will provide coverage system much more advanced than the first episode.
* The reaction of the enemies will be scripted, however, they react to your position and your actions(decisions).
* On the sound Side, the game will be entirely in 7.1!
* The images of the game will be further processed through a software to give a more realistic look.
The game will be available in the year 2008.
Source: Playstation Magazine