Madrigal Debut Achievement in Halo: The Master Chief Collection

This Easter Egg can be found in the mission, Assault on the Control Room.

The hidden music cue in this game is none other than Siege of Madrigal, a song that original Halo developer Bungie used in one of their previous video games. When standing in a specific spot on the aforementioned mission, you will be able to hear the faint melody to the song. Be sure to follow the guidelines listed below, since it’s a slightly complicated process to trigger the hidden music cue.

• The music cue can be found on the pyramid structure at the end of the level
• There are three brackets on the large tower above the control room entrance
• You will need to land on the second one with a Banshee
• A Banshee can be stolen on the snowy bridge during the middle of this mission
• Once you have landed on the bracket, face the cliff and go to the right side of the bracket
• There should be a part of the bracket that points towards the cliff, then slopes down steeply
• From the flat part of the bracket, move towards the steeply sloped portion slowly
• You will eventually hear the song

Once you have successfully reached the required spot, Siege of Madrigal will be triggered and the achievement will unlock.