http://xbox360.ign.com/articles/891/891677p4.html
It's a 4-page interview with the guy writing the story.
IGN: How many pages is the final script?
Josh: You know, we have to compile it all. It's one of my goals. But it's gotta be 300 pages or so. So it's a couple movies, you know? That's not including everything, that's just a lot of the core stuff. Not including battle chatter stuff and things of that nature. So it's a lot when you combine it all. Maybe we'll put it out one day as a game script for people to see. You never know.
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While they clearly aren't going all MGS on us, it looks like Epic definitely heard the complaints that the first Gears was too light on story, and seem to be coming up with something that makes you wanna see what happens next 
