The gameplay and technology (Graphics, AI) and the multiplayer (classes, maps, clans) are fantastic and truly ground breaking.
However the single player campaign lacked a strong story and the character developments were not strong at all. It was difficult to empathize and identify with the lead character and the awful voice acting did not help.
Also missing was co-op on the single player campaign and local multi-player.
Its ironic that Killzone 2 got it right with the most difficult things and kind of slipped in providing the easier features.
Which leads me to think that the 3rd iteration will be the one where they will add a great story and co-op and all the other minor stuff that people want.
Its an awesome ground-breaking classic for sure (my all-time favorite FPS) but I am thinking that the 3rd iteration with the same technology and a great story will be the defining FPS of this generation.
For the story, I think its easy to make it awesome, just add a twist with a helghan campaign midway through the game ;)
It is better to die on one's feet
then live on one's knees
