Solved
I still cannot get the supplier achievement?
I have just collected my last ingredient for the supplier achievement ( I can't remember what it is called, but is a single item, found in the final chapter in a mission for Merrill, in prides end). ...
Not sure what went wrong for you. But here a guide that helpes me to get this achievement:
http://www.trueachievements.com/a147880/supplier-achievement.htm
