Go to Killzone.com and they have a full storyline for before and after the first game.
It's not too detailed but you understand the reasons for what happens in KZ2
PSN ID: T_Gears
End of 2009 ltd sales:
Wii = 67-68m
X360 = 38-39m
PS3 = 34-35m
Prediction: The PS3 will surpass the 360 on weekly sales after it drops to $299 on all regular weeks (no big releases).







