Gumshoe achievement in Halo 3: ODST


Find the 3rd clue unraveling the mystery, alone or with another ODST.

2 guidesOnline/Offline - These achievements can be obtained in either an online or offline game mode.Single Player - These achievements can be obtained by a single player.Cooperative - These achievements can be obtained by two or more players in a cooperative game mode who have met the achievement requirements.Main Storyline - These achievements are gained automatically by progressing through the main game modes.Buggy - - These achievements may unlock after the requirements have been met or not at all.

How to unlock the Gumshoe achievement

  • HarrawrHarrawr155,379
    22 Sep 2009 12 Apr 2010
    22 4 2
    Story related, you will have to find seperate clues in order to finish the campaign, this is unmissable if you intend to finish off the campaign.

    Clues tend to glow when in visr mode, and you should get notified by your radar that you are near one.

    Guide not helping? View 1 more guide for this achievement.

    Showing both comments. Leave a comment.
    I SOV INot going to down vote because idk if the game glitched on me or not but I finished the campaign on legendary and never got this achievement. I even found all Audio Files.
    Posted by I SOV I on 15 Nov 12 at 18:49
    HarrawrPlayed this game so long ago now so its barely in my head, but I think i remember the story achievements being pretty temperamental when you didn't run through it start to finish without replaying anything... could it be anything to do with that?
    Posted by Harrawr on 15 Nov 12 at 19:58
  • Have you got any tips or tricks to unlock this achievement?
    Add a guide to share them with the community.

    Sign in and add a guide
  • I SOV II SOV I101,751
    19 Nov 2012 19 Nov 2012 19 Nov 2012
    10 0 2
    Due to the Game Save System this achievement can be missed. It's possible to finish the Campaign and not obtain it.

    Do not "Replay" any mission. You must start a Campaign session and not add Skulls or edit the settings. Always "Resume" your Campaign session.

    Because I replayed a mission I had to play through a 2nd time to get this.
    Showing both comments.
    MetalManZI have always done resume campaign still no achievement is it bugged wht am I doing wrong
    Posted by MetalManZ on 13 May 17 at 16:46
    MetalManZfinally got this achievement it unlocked during oni cutscene at the start.
    Posted by MetalManZ on 14 May 17 at 07:59
Do you have a question about this achievement? Please post it in the Halo 3: ODST Forum