Well, I don't have the PC version installed and too lazy to find the disk. I do have the xbox version with me. The file list is almost identical to the one posted above.
And if it's anything like the PC version There is definitely speaking script inside the Script.pak. Unfortunately there is lots of compression, but there is some legible text.
I still don't think I have the skills to figure out compression myself. But yeah, certainly a possibility for the future. Just don't get any hopes up.
(Yeah, I'm a bit late on reply, I've been busy.) ^^;