You saw a QR code which was cut into 9 pieces. By dragging the images on your screen you could get a QR code which leads you to the next step.
At this step, you can download a ZIP file. This file is encrypted with a password. You can find this password in the Response Headers of the page itself (by using the Network Inspector in a browser, you can easily read it). The password is: FvBn24clddqU3gaaXVMTAkFF
This step will only open in 2 hours. Or will it? You had to adjust your computer's time so that your browser thinks you are at least 2 hours in the future. Then you would get the link to the next step.
You were given an audio file here. If you run that file through a spectrum analyzer, you can literally see the URL of the next step.
If you send the correct commands to the bot on Scoutlink in a private message, you will receive the answer.