Thank you for including voice acting and reactions if you commit an epic betrayal. Having characters that you have a relationship with turn on you with a "what have you done?" before you have to kill them during the combat is dramatic, especially with a couple of options to respond and rationalize your betrayal.

It is disturbing as a player hunting down and slaughtering non combatants, with the verbal encouragement of an NPC you can follow into combat.

The only minor issue is that the AI takes much longer thinking about what to do with frightened non combatants then those protecting them from your betrayal.