Gameplay

Assembled the Majority

From Halopedia, the Halo wiki

Assembled Majority

Assembled Majority is an achievement in Halo: The Master Chief Collection. It is awarded by finding the Data Pad 18 on The Pillar of Autumn on Legendary difficulty in Halo: Reach, located on the roof of the SinoViet Heavy Machinery ship breaking yard housing the scrapped UNSC Commonwealth.