Halo Wars 2

Much like the main game, Phoenix Logs are collectibles scattered around each of the five missions of the Awakening the Nightmare Campaign. There are a total of ten Phoenix Logs to collect for this achievement (two per mission). While you will likely stumble across at least half of them naturally while moving around the map and completing Bonus and Optional objectives, there are a few that are well hidden, tucked away in dark corners of the map.

At this time, no video guides exist for the location of the collectibles, so make sure to explore the maps thoroughly at a steady pace. As mentioned, most of these logs can be found quite easily, while others will require you to venture off the main path into dark corners of the map.