Just like Sun-Tzu said in The Art of War: Know your enemy, and know yourself.
The Empire's mindset is still that of the mindset of it's Emperor, Sheev Palpatine, known to former Jedi as Darth Sidious. In addition to his immense power in the Force, he is an excellent manipulator and motivator of men (read: those who become his Generals, Admirals, and Moffs) who are full of ambition and greed and don't give a fuck how they get what they want.
He, however, is still smart and pragmatic enough to delegate when he is not well-versed in certain skills. Mainly, military strategy, tactics, and logistics.
Darth Vader is still hunting Jedi Padawans and Knights. Everyone not named Mace Windu, Obi-Wan or Sakoya Jade (the OC) that was a Jedi Master during the Clone Wars is dead, that you are aware of. That doesn't mean in this quest you won't stumble upon one or two, but I'll be doing secret rolls for this at unannounced times. And the degree of difficulty will be very high on said rolls.
One very scary..thing that is different from Canon here: Tarkin was executed, publically, by Darth Vader as a warning: Do not use fear tactics so much that competence takes a backseat. Vader convinced Sidious to cancel the Death Star project for the most part, instead using theory gained from the CIS in superlaser technology for use on much, much larger Star Destroyers and planetery defense grids.
Instead...Grand Moff Thrawn is now in charge of the Maw Facility.
The Generals, Admirals and Moffs are still mostly clowns as depicted in the EU/Legends...but do you now see the importance of the Assassin's Creed theme here?