Many thanks to fellow fan drsprite77 from youtube for capturing these first two videos! The fun part of this one starts around 26 seconds into it.
This next one shows what I assume to be the same scene being filmed repeatedly.
And this final one (Thanks to FilmSpyESHG) Shows what is probably Dauntless running towards the train tracks. Seems like this could be the same scenes as we are seeing in the first video, just a different angle. What do you think?