Halo Campaign Evolved skulls and where to find them

An updated Halo: Campaign Evolved guide catalogs all 42 skulls and shows where to find the 39 hidden ones across the campaign.

The walkthrough explains how skulls change gameplay and groups them by mission for easier collection.

Three skulls unlock automatically, while the rest must be found in levels.

The guide is aimed at players chasing custom modifiers, the Headhunter achievement, and the demanding LASO challenge.