IGN reviews killzone 2- 9.4/10

[Euphoria14]

SHMUPGurus said:

SpartanFX said:
[...]

Closing Comments
Killzone 2 is only a short month away from hitting shelves, but the game will definitely be worth the wait. The single-player experience is a truly enjoyable campaign across the Helghast home world that will test your skills, particularly on the higher difficulty levels [...]

Good to hear that! I've heard you can finish the campaign on easy and medium by just using the knife! o_O

 

Actually the "knifing" comment was referring to the games first level on normal dificulty. That same article said tha later on in the game those same tactics will get you killed.