I like the ideas in this one-shot. The planning and execution of the tasks, mixed with the narrative / journaling should result in an immersive experience. It somehow reminds me of Cargo Commander (probably because of traversing hazardous locations to fetch cargo, and the bleak setting.)
I think it is somewhat unfair to rate legibility and style on what is a prototype / work in progress. Still, here are my comments. I did not have problems understanding the game, obviously there are parts yet to be written to allow it to be completeley playable. The organization of the rules could be changed. For instance, moving the main game loop (page 6) closer to the game overview (page 2) would have been helpful.
When reading about the longshoremen I imagined they were robots of some kind, but then, the need for breathing apparatus, suits etc. made me unsure. Also, the section about items mentions special requirements, such as coolant systems or large transport vehicles, but there is no indication of what is available or other restrictions on use.
As the one-shot is meant to be system-agnostic, guidelines to adapting the longshoremen skills to a couple of popular sci-fi systems would be helpful.