I finished the game on Legendary (Co-op) but accidentally killed one of the Engineers. Knowing this, I stopped collecting the audio logs too.
I know I have to re-play the whole campaign to get the 2 Engineer based and audio log achievements. I plan to do this solo. However, what is the lowest difficulty setting that I can get these achievements? Easy? I want to breeze through it and only do clean-up on the remaining achievements.
I know some like the Vid Master require different difficulty settings. Thanks!
UPDATE: Any difficulty setting (including Easy) will net you the Audio Logs and the Gardian/Engineer achievements.
Last edited by RamHawk; 09-28-2011 at 06:13 PM.