Some players have reported that the achievement "Record Store Owner" for Halo 3: ODST (within MCC) does not unlock unless all audio logs are collected in order.

We recommend making sure you collect each log in order. You will see the list of the ones you have found in-game.

If you missed one, you will want to re-play the campaign on co-op and collect all the audio logs again, making sure to grab the one you missed before. This should trigger the achievement.