Talk:Void Keys/@comment-77.175.72.198-20130525000044/@comment-77.175.72.198-20130525153334

Update on my original post here:

Got another key from Io after just two solo runs (wave 5 only).

Also had one from a random solo mission, got exterminate III. Pretty sure the mission wasn't a very difficult one so it would appear you have a decent chance to get hard Void missions from easier Solar system missions.