Killzone 2 will be getting some DLC that should be out by the end of the month.
The new DLC will go by the name Steel and Titanium, the pack and will feature two new multiplayer maps. The first map is named Vekta Cruiser and will take place on a Vekta Cruiser. The second map will be named Wasteland Bullet and that one will take place on a couple of trains.
No price has been announced for the upcoming DLC but I believe this will be a big seller and I for one will be picking this one as soon as it comes out.