My theory is that they're assigned to the Death Star. That is a weapon platform intended to destroy ...

My theory is that they're assigned to the Death Star. That is a weapon platform intended to destroy star systems. If you're going to destroy systems, you don't need to occupy them, so you don't need to sign the top shots and you don't need to give them training in the shooting range as much.

Or, it'd suck if stormtrooper shot holes in our heroes halfway through the movie.

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