I agree with the sentiment that this could use a little work on the layout front. Personally, a point-crawl map to connect the different sites would have helped a lot. I am not certain what tasks the PCs are meant to do on the planet, aside from 'QA testing' . I wish there was more info on the families in the bunker. Who are they, what are they like, what about their presence here could be made more dramatic?
The image of the Death Mountain is terrifying, I love it!