GLASSHEADS, pt. 3 Challenge #2 - Backwards
This challenge can be found when the team figures-out that they can walk backwards in the first puzzle room.
The Setup
You've intercepted some audio. Can you figure out what it says?
We get an mp3 file.
The Sounds
The file sounds like a backwards piece of audio, which the title of the challenge heavily implies too.
In order to get the flag, I used audacity. Open the mp3, select the track, then do Effect > Special > Reverse and play the audio. The key will be spelled out to you.