I wanted to try and sneak my way into Raederic's castle and avoid killing if I had to. I managed to find the route but not understand the puzzles, even when I had the priestly password I wasn't wearing robes so I ended up killing every last acolyte.
Then when I had the key that allowed me to sneak into Raederic's throne room I managed to take a wrong turn (mistaking the throne for a staircase) and killed all the mercenaries I was meant to be avoiding including all of those I had snuck past in the courtyard at the start of the mission.
My character clearly has no sense of topography.