BurpsPyscho said:
I'm going to leave the Xenos aside for the purposes of my post. What's most important to me is that a space marine fired a krak missile at a battle brother, with the apparent intent of killing or at least severely injuring him. That's a betrayal, for a space marine, of horrific scale. In pure 40K lore, as I see it, someone who did that might well be excuted. You may want to avoid that for your players, but as I see it, he'd lose renown, he'd be severely penalized for his actions, forbidden from leading a kill team in the future and very closely watched and questionned by Deathwatch command.
To compare this to an incident from a game I'm in, we were fighting a Tryanid infestation on a cruiser and our Libraian ate one too many brains, botched his roll and was actually briefly taken over by the hive mind. We never even considered opening fire on him, we tackled him and tried to knock him out at the most, until he came back to his senses. After that we carried on, though we kept a close eye on him for the rest of the mission.
I can't think of much worse then trying to kill one of your own battle brothers, to be honest.
Yeah but there are after all the ritual duels between Dark Angels and Space Wolves too which can be fatal - so there is a least some pretext for not punishing the player too harshly.
Alex