Gameplay

The Answer is Simple

From Halopedia, the Halo wiki

The Answer is Simple

The Answer is Simple is an achievement in Halo: The Master Chief Collection. It is awarded by finding the Data Pad 14 on Long Night of Solace on Legendary difficulty in Halo: Reach, located on a structural brace above the staircase leading to the Sabre in the Sabre Program Launch/Research Range.