Whoo, what a fun prologue! I usually dislike them, stylistically, but yours seems to add to the flavor of the story, instead of detract from it. One thing I am curious about, however, is the whole "intentionality of your choices" that the COG team tends to amp up, and the cybernetics.
Both of these are, I guess, kind of summarized in the same section. When you choose your cybernetics in the prologue, I have no idea what they do! I guess I can infer what they do from, y'know, the "armor" part, but the musculature one, to me, seems like it should be the same thing as armor. I quickly peeked through the stats too, and there didn't seem to be any changes to skills, or any info added in the cybernetics chart. I think knowing what the player is getting into with each cybernetic would be worthwhile, and perhaps knowing its use afterwards? Whether its a skill-enhancer, or merely aids in certain story points.