CES 2009: ‘Killzone 2′ Single-Player Campaign Will Be 10 Hours Long!

[Griffin]

The length of KZ2 has been known for most of the year, the game has 10levels, and each one will take 45-60 minutes. This is straight from the developers.  There are also 4 different difficulty levels and the option to remove the HUD at any time, with no option to even have a HUD on the hardest difficulty.