Hello Everyone I would like to address a weird thing I stumbled upon with a YouTube Video. Its unsolved to what I have seen and it looks like no one has solved it yet. Why? Its odd and might be an awesome Easter egg to complete. So far you have to start the last mission up on the difficulty Legendary or Heroic and you play through the mission to the point you have to destroy 4 Gravity Generators but before or after you destroy them there is a Vorpal Talon. You can pick up any ordinary Energy Sword though but Lock must have the Sword or it’ll not Que or start. When you have the Sword if its the Vorpol Talon just rap around the right side of where the weapon is and head to the tunnel but dont head into the tunnel jump up the ridge to its right and follow it heading to the audio log but instead of listening to it you hit it with the Sword but its not necessary because it'll activate as long as Lock has a Energy Sword. Then after that you'll hear a Que and after that a Zealot Elite will spawn and you can kill him or let him live hell de-spawn after 40 so seconds. What are the next steps? Here is a link to the person that brought this odd but mysterious Easter egg to light. Please look into this if your interested.
Nowise10
The Unsolved Easter Egg in Halo 5: Guardians *UPDATE - SOLVED!!!* - YouTube
You can use this thread OP, see the last few pages for the latest details:
https://www.halowaypoint.com/en-us/forums/6e35355aecdf4fd0acdaee3cc4156fd4/topics/mission-15-guardians-easter-egg-help-wanted/6670a0ea-8d79-45b8-ae5b-526f9bf79bc1/posts