I'd say kill the Chaos Worshipper! He's a Thousand Sons to, can't trust those bastards!

Then 2k space marines are at your door

Unless he's trying to deceive us!! Besides, if we let him go, I feel like something even worse 2k Astartes will hit us!

You all will just have to make the choice

@TuskatheDaemonKilla @Wincent
What do you guys think?

Kill him I don't know it would be better than being branded traitors and failing the mission.

He is letting destroy the machine that has taken control over the guard

Just blue the traitors!

So yeah fuck it lets just mow him and those cultists down and complete the mission so what if we have to fight thousands of traitor marines at least we did our job.

Don't trust a chaos sorcerer. Burn him on the spot and kill the heretics