Talk:Stalker/@comment-188.4.87.172-20130519041816/@comment-108.33.29.144-20130519175114

I see where your confusion comes from. What it means is that if You have killed ANY boss, at ANY time, then the Stalker has a chance to come after you.

So let's say you killed Captain Vor once. The Stalker can attack you at any time, on any mission, at least once. Understand? So long as you have One boss kill - it fufills the requirements for the Stalker to come and kill you. (Or try to)