Not great starts for either of the shooter games, especially given how frontloaded core games usually are.
It's fairly obvious that Sony and GG are going to have to have a rethink on how they handle Killzone if they want it to become a bigger system seller rather than just a middle of the pack franchise. They need to take some chances, put stuff out there that immediately doesn't look like the Killzone we've all come to expect. Looking at what they've shown of the NGP version though it looks like they've dug themselves into a particular style, but I think limiting themselves to the Hostile Enviroment/ Heavy Industry aesthetic is having diminishing returns. And if the narrative and lore is restricting them from changing up the Helghan enviroment too much, then they need to take the setting away from Helghan.
And then you have Bulletstorm opening even lower, even on 3 platforms. Chart placings aside, I can't see either SCEE or EA being particularly thrilled with these openings.