Thanks for the notice. I was selling my final pieces of material to get the weapon I was waiting for. I was going to do it last night but the xbox live outage prevented me. So I login this am, head to the quartermaster, and start selling materials. Only I thought "great! New update I can sell them 20 at a time instead of 40". Little did I know that now I sold all of my vanguard marks, and have absolutely no way of recovering them. Is there a no return policy in the 25th century of space somehow. Why can't you buy AND sell materials? Why even collect materials any more when you can just buy them. What do the starter players do know to help gain rank. Selling materials helped them. Huge mistake and another undocumented disappointment for Bungie. After all of the Halo production you guys haven't figured this out yet????