I have opened up about 80+ exotic engrams, trying to get the twilight garrison, all of them have either been crests or armentariums, then today I get on my phone and see that xür is selling it; I almost -blamed- myself. That moment was one of the best moments of my life, all my friends who don't even have Titans get it first try, and FINALLY I can get garrison! Sorry to bother all you good people with my story.