Related to the story you posted recently about Ustuth; since obviously assassination plots are now being carried out post-worldgen, do players have to worry about assassin's getting into the fort and killing our nobles? We don't get any special protection from those cases, right?
Assuming that's the case, do they show up hostile, trying to sneak in in ambush from the get-go? Or will we have to screen out other visitors?
I asked about this some months ago:
"Do you plan on making NPC assassin do their deeds secretly in a fort mode fort, like vampires do? What I mean is, will they be able to kill someone and leave the fort, passing by other dwarves without anyone noticing that they are a/ were the murderer?
It would be a bummer if they automatically just turned into "invader" status after the murder because that would mean no assassin would ever leave a player fort alive, like the guys who try to steal artifacts."
Toady:
"I hadn't quite gamed out fort-mode assassination details; I think the way you describe is probably best, as a parallel to the "successful" assassinations from world gen. Sometimes, the w.g. ones 'fail', but there's still a duel where the assassin wins; this would probably be analogous to the invader version. Undetected murder probably involves them succeeding in their stealth rolls until they are adjacent to the target, and then rolling a good attack, which it would then fudge and just turn into a murder (like the fell mood) -- if they aren't sneaking (because they are a visitor or a citizen), they'd just need one stealth roll adjacent to the target to simulate the sudden attack, say, and then the good attack roll. The automatic fell murder strike successes have always needed some sort of additional justification or material check, but we can ignore that for now."