I appreciate the scriptwriter coming out and trying to extend a hand to the hardcore, but it won't do much difference to the fact that the plot's (yes, I use that term loosely) getting fucked to make it palatable to the mainstream moviegoing audience.
Personally I enjoy the creepiness of demonic horror flicks (I didn't think Event Horizon was as bad as some made it out to be) and think the Doom story would have made a nice foray into that area. Now it's another band of survivors vs. zombie horde flick, bound to get lost in the shuffle. Oh well.