Is some respects the First Order operates more like the Grand Army of the Republic during the Clone Wars, but without the Jedi ad their influence to make sure the clones are acting more humane and that the officers aren't abusing their power. The Jedi (mostly) cared about their troops. The Empire did not. The First Order seems to be in the middle of this, caring about its troops to a point, but not in a humane way.
With the new Rogue One trailer, we see that Vader will definitely be a factor in the film, though to what extent is unclear.
With the new Rogue One trailer, we see that Vader will definitely be a factor in the film, though to what extent is unclear.