KZ2 : halo killer ? yes or no

[Slimebeast]

Halo 3 has 9.4 million copies sold. It got 93.3% on Gamerankings.

Killzone 2 only 1.3 million sold. It got 90.8% on Gamerankings.

Halo 3 sold 7 times as many copies as Killzone 2.

I think Halo 3 killed Killzone 2.