There is no such thing as a Halo killer now, because Halo is more than just a game. It's has expanded into almost every market: Action Figures, NASCAR, Pop (Moutain Dew), and other memorabilia. And all this because of mass marketing.

At the end of the day, Killzone 2 is just a game for a system

I loved the game. Don't know why so many reviewers complained about it.

This is a very easy question to answer.  Was the first Killzone a Halo killer? 

Same here! It sold around 16 million, correct?

and thats not including the bundle sales! ;)

Haze was said to be a Halo killer.

R2 was said to be a Halo killer.

Despite people denying it, I've seen the phrase "Halo killer" and Killzone 2 mentioned together multiple times. When it turns out it's not even going to be remotely close, I bet my ass off the next FPS for PS3 will be praised as a "Halo killer" as well, rofl.

Also, check Youtube, I'm looking at multiple "halo killer" fanboy made videos right now.. check the comments and tags.

HAZE:
http://www.youtube.com/watch?v=V3o8yRTfphQ

R2:
http://www.youtube.com/watch?v=4NouYzY_0iw

KZ2:
http://www.youtube.com/watch?v=dszUkZFQiw8

Halo is God, UNTOUCHABLE. The only thing that even comes remotely close to it is Gears of War, and even then it will never come close.

No. Simple as that. KZ2 will not sell as well as H3.

I kinda liked it too. Never got around to finishing it though.. guess i should look around where i put it.

@op No. I don't think i have. I do expect it to be better though :p but there isn't room for just 1 good game in my opinion ^^ they don't need to kill eachother lol.

Guerrilla are not trying to "kill" anything. They're aiming for a completely different experience than most shooters.