I like the Killzone franchise, but all who have played it must admit that the only reason it's not more popular, it's because Guerrilla doesn't give us a Helghast campaing, and doesn't expand the Helghast culture.
What people like the most of the franchise are the Helghast. In fact, they are the real protagonists. You can make a Killzone game without the ISA, but you can't even think of a game without the helghast.








