So I'm not in a achievement hoarder but if I do all the stuff to get it would be nice if it actually came up. On three separate occasions have I completed all the stuff for an achievement to no outcome. I have gotten all three subclasses for the warlock with no achievement pop. So I thought maybe it's just because I haven't completed the campaign yet. So I completed the campaign with no result. so I try it again on a hunter with the same outcome. I have also completed the Call to Arms mission for Lord saxx twice now and still cannot get the achievement pop. Again not an achievement hoarder but WTF Bungie!