And as far as who they are and why they are attacking. Well thats something I want people to play the game and find out
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I kind of figured, but I wanted to throw that out there.

Can you be more specific on which parts of the dialogue I should cut though? I'm already assuming I should remove the crew member dialogue, but let me know of anyhing else.
Um it's hard to say. It's pretty solid overall, and I'm not sure I would particularly add any new dialogue. I would just watch for little punctuation errors. Here's the couple that I found.
In "do not damage the cargo they are carrying," Capitalize the d in "Do"
Change "they are" to "they're." When speaking aloud, people usually just say "they're" instead of "they are." The latter is better for written documents.
Where Lord William says "I better be careful," that should read "I'd better..."
Oh also before the soldier dies and says "Fuck you. You fucking psychopath," it almost seems a little forced, maybe in bad taste. That's kind of why you don't see it used (often?) in RPGs. I would try something like "Go to hell, you fucking psychopath!" You'd still have the f-bomb, which might be necessary considering the guy's about to die, but it's a bit more readable. I would see "Fuck you. You fucking psychopath," come from someone who's already been stabbed or cut, and he's coughing up blood in the middle of the sentence. Overall my advice I guess though would be to try different dialogue variations and find one sounds right, and the more you think about how dialogue is being used, the easier to gets to write.