To unlock Chronicler achievement or trophy you need to collect 40 audio logs scattered throughout Red Faction: Armageddon. Find and play these audio logs to earn Chronicler achievement.
One simple way is to save at the start of every chapter and then if you miss any of these you would be able to come back to that specific chapter and find these collectibles.
If you don’t save at the start of every chapter, you will need to restart the game to collect those collectibles that you missed. Anyway, you can watch the video below to find all 40 of these audio logs in Red Faction: Armageddon and earn Chronicler achievement.
Red Faction: Armageddon Audio Logs Locations Guide
If you find all 40 audio logs in Red Faction: Armageddon you should have Chronicler trophy or achievement. Remember to save at the start of every chapter or get ready for a second run on the game to find all the collectibles.
Thanks. Monster Achievements