Area Collectibles?

In the bottom left of the campaign TACMAP is the area collectibles section. I’m trying to figure out what the ‘2nd from the left’ icon is?

The usual ordering of the items are the following from left to right.

  1. Spartan Locker
  2. Banished Audio Log
  3. Spartan Core
  4. Skull
  5. UNSC Audio Log
  6. Forerunner Artifact
  7. Propaganda Tower

However, it should be noted that this list do only describe the ordering and if there exist none of a given item, then it will be removed from the list while still preserving the ordering.

Thanks for the info. Banished audio log, never would have thought.