Yes. You have to beat every mission on Brutal for 100%, including alternate missions and the secret mission in Wings of Liberty. So for the Nova/Tosh, Selendis/Hanson, caves/platforms choices you have do the other choice on the Mission Archives.
Yes. You have to beat every mission on Brutal for 100%, including alternate missions and the secret mission in Wings of Liberty. So for the Nova/Tosh, Selendis/Hanson, caves/platforms choices you have do the other choice on the Mission Archives.