Just one more post on the Walkers. Take a minute and think of the different approach to making the films everyone took on Empire compared to Rogue One. The people making Empire did actual research to find something visually compelling but that would actually work tactically in that kind of environment. It’s clear they put a lot of thought into the entire thing.
The people making Rogue One, on the other hand, were just like: “yeah, everyone loved those things and they look cool, so let’s put them in the movie”.