I'll mention how-to-write-a-book-now.com by Glen C. Strathy. External Link at the bottom of chapter. I found much of this parts information on there some time ago.
We'll have Erhard Schreiber "Pursue the Goal" and set him as the Main Character.
Linn Dahl will "Help" him.
The ugly alien could be the Antagonist and avoid or reconsider. But I'll go with "Uncontrolled."
Sudden idea. I'll have another crew member be the Antagonist. The crew member will "Avoid." (The alien will be more "the mystery," something happening in the story rather than the actual Antagonist.)
I use the mindmap outline as a general idea. Sometimes I find it more helpful to change the keyword to something more specific of how the character acts. In this case, I'd write it in the character's bio. He avoids helping the Captain or other crew in any way in the hopes he can end up being the one in charge. Avoiding dying himself, hence avoiding dangerous situations.