Thus far every time I have earned a campaign achievement in StarCraft 2 I have also finished its associated campaign mission. This is fine when playing a mission for the first time but on subsequent replays I'd rather just earn the achievement and then quit the mission.
Which leads me to my question: if you don't finish or abort a mission do earned achievements stick?
Best Answer
Yes, you do. As long as you see the popup notifying you that you earned an achievement, it's yours regardless of whether or not you finish the current mission.