Quite possibly the best selling game disappointment ever.
On average 677,000 in US sales would be a great thing but with a development budget nearing blockbuster movie status....it's incredibly disappointing.
Considering the immense amount of money that was invested in Killzone 2 over the 4-5 years that it's been in development, it should be much better than it is.
ESPECIALLY IN THE USA .....LAND OF THE SHOOTERS.