Are there different outcomes for the Dark Brotherhood questline

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I'm near the end of the Dark Brotherhood questline and during my last mission, things went pretty badly. Now I'm wondering if my decisions had anything to do with it. Here's the situation:

Astrid is the one who sold me out to the Imperials and I've been taking her orders from the very beginning. I delayed talking to Amaund at her request. Following that, I killed Cicero instead of sparing his life. Thanks to her, the Imperials mass-murdered my sanctuary and burned it to the ground. That left me thinking that if I hadn't listened to her, things might be better off.

Does making different choices change the outcome of the Dark Brotherhood questline?

Best Answer

No, this always happens regardless. There is nothing you can do to avoid that outcome.