So, I walked up to that castle, browsed the area with my invisible thief. And then I thought, let's see how many I can kill before I die. I have now 2/3 of the crusaders in the courtyard down. The silly thing is, I can reteat outside the gates, rest and go on killing.
I like that the game lets you try different thing. I am the son of the Lord of Murder, after all.
I am only wondering, is this leading me anywhere? Or will I just end up in an empty courtyard and still have to use a secret backdoor? I feel like I am undermining the intended storyline here.

it doesn't break the game no
what questline \ out come you get depends on who is in your party and do you take their side