Corresponds with the letter "n"
===24.16.1===
Found on [[The Water Turned To Blood|http://www.thewaterturnedtoblood.net]]
===24.16.2===
Found on [[Judson Ogram Correctional Facility|http://www.judsonogram.net]]
===24.16.3===
Found on [[http://www.thewaterturnedtoblood.net/bridge.htm]]
===24.16.4===
Found on the video for Survivalism - in the bottom-right corner of some of the monitors.
===24.17.1===
First number not to correspond to the current halo.track.letter theory (unless one counts the bonus track on the Japanese release, which would be track 17).
===24.18.1===
Found on [[http://www.cedocore.com]
===24.19.1===