wow, a pretty ambitious project for a game jam for blind gamers. I think the game itself might be pretty cool to explore, but even with visuals I was not sure what to do. I think the idea is to allocate your crew according to the challenges, but my crew died pretty fast.
Its a bit unfortunate that the voice over can't keep up with what is happening, and skipping did not work for me, I think.
I want to point out that this is a pretty cool idea, and with some ui/voice over adjustments and maybe balancing, this could be a great game. My advice would be to try to simplify the ui (if possible), which might also help with the voice overs. Maybe you could have a separate statistics and an assignment panel, both without different tabs?
Hope we can see some progress on this after the jam ends :)