Halo: Campaign Evolved Clean Sweep Achievement — How to Unlock
How to unlock the Halo: Campaign Evolved Clean Sweep achievement: Find all skulls and terminals in Pillar of Autumn.
Clean Sweep unlocks after you find the Approach Terminal and all three skulls in Pillar of Autumn: Speed Limit, Magnified, and Perspective.
ACHIEVEMENT ROUTE
Halo: Campaign Evolved Clean Sweep achievement requirement: Find all skulls and terminals in Pillar of Autumn
Confirmed details
- Trophy: Bronze
- Gamerscore: 20
- Difficulty modifiers prevent unlock: No
Related guides
Sources
Last reviewed: July 24, 2026