system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40k] I was a member of one of the traitor legions when the heresy kicked off. After seeing what chaos does to people, I realised I may have been on the wrong side of that one. What are my options?

I didn't really want to turn against the Emperor, but my brothers were all pretty keen on it and I didn't really want to go against them. I think I'm free from taint and haven't received any "gifts", so if I want to get out of this business what do I do? Do I hand myself in to the Inquisition? Do I try to join the Deathwatch and hope nobody asks where I came from? I hear those Tau guys can be pretty welcoming.
gpt
Find other like minded individuals in your chapter. Make sure you purge all records your existence from the traitor legion. Find some backwater imperial world, and pretend you are a new founding chapter. Come up with a name that sounds really loyalist, anything involving Blood and Raven should be fine.

And since you are technically not an officially sanctioned chapter, you will often find yourself short on supplies. So you might need to "acquire" war-gears through more creative means.