Two more things that were in Killzone 2 that aren't in Killzone 3:
1. In-depth stats system. Killzone 2 provided a plethora of stats regarding both how you played the campaign and how you performed in multiplayer. From accuracy and kills per weapon, to the number of helmets shot off in the campaign, etc., and for multiplayer, they even provided worldwide rankings for each specific stat. A wealth of information was at your fingertips.
Killzone 3 removed all of that. You have no stats for the campaign, and what few stats you have for multiplayer can ONLY be accessed via Killzone.com.
2. Destructibility. In Killzone 2 you could shoot the cement tiles off the sides of columns, knock over thin metal walls (like the ones in the middle of Blood Gracht), and other objects. I thought they'd increase the amount of destructibility in Killzone 2, but they've only lessened it. They actually have walls identical to the ones in Blood Gracht in Killzone 3, but they can't be destroyed! What the hell!
