Halo: The Master Chief Collection achievements

Halo: The Master Chief Collection

4.5 from 12212 votes

There are a maximum of 600 Halo: The Master Chief Collection achievements (400 without DLC) worth 20,682 (6,000)

150,835 tracked gamers have this game, 614 have completed it (0.41%)

Achievement Details

Mystery Achievement in Halo: The Master Chief Collection

Mystery Achievement12 (5)

This is a rare achievementInscrutable. Mysterious.

  • Unlocked by 25,016 tracked gamers (17% - TA Ratio = 2.45) 150,835  

Achievement Guide for Mystery Achievement

87,088 (46,270)
Achievement won on 11 Nov 14
TA Score for this game: 9,213
Posted on 11 November 14 at 19:25, Edited on 21 November 14 at 02:23
This solution has 276 positive votes and 2 negative votes. Please log in to vote.
This Achievement is awarded for uncovering an easter egg that has shown up in multiple Halo games.

To unlock it:
From the main menu, select Multiplayer
Then select Custom Games
Select Halo: CE
Select any map
Click the right thumbstick to bring up the file save options
Enter ".fortune" as the file name (without the quotes, and note the period at the beginning)
A fortune/proverb will appear and the Achievement will pop.

You can do it multiple times to see different proverbs.
You can read more about this easter egg here:

Here is a video by RandomChievo (not me):
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