i seem to be playing killzone 2 hell of alot and enjoy it, This may sound strange but i tried call of duty 4 online and didn't like it as much but loved the single player game where killzone 2 got quite boring.
I dont think 2 hours a week will get me a valour award. Oh well.
I also agree. The SP on Killzone 2 didnt do much for me. But then I only rushed through it on Normal. Perhaps I should try a hard setting to get a real feel for it.