Halo Campaign Evolved Achievements: Full List, Roadmap & Missables

If you are diving into Halo: Campaign Evolved for the first time or returning to the ring, this guide covers every achievement in the game, how difficulty modifiers affect unlock conditions, and what you need to know before you start hunting. The official achievement list supports two-player splitscreen on consoles or four-player online Fireteams, so bring friends if you want to divide the work.

Campaign Completion Achievements

The game includes thirteen mission-completion achievements: one for each of the ten rebuilt campaign missions and three for the new missions. These are straightforward — finish the mission on any difficulty and the achievement unlocks. Difficulty modifiers do not block any mission-completion achievement.

Mission Achievements (Bronze, 10 Gamerscore each):

• The Autumn Leaves — Complete Pillar of Autumn
• Installation 04 — Complete Halo
• Infiltration Anticipation — Complete Truth and Reconciliation
• Bee Thirty — Complete Silent Cartographer
• Control Alt Delete — Complete Assault on the Control Room
• This Stuff is Your History — Complete 343 Guilty Spark
• Protocol Dictates Action — Complete The Library
• Double Trouble — Complete Two Betrayals
• Captain's Orders — Complete Keyes
• Dust and Echoes Evolved — Complete The Maw
• Before the Fall — Complete New Mission 1
• Tiger Company — Complete New Mission 2
• Personal Space — Complete New Mission 3

Difficulty Achievements and Modifier Restrictions

Four difficulty achievements reward completing the entire campaign on a specific setting. The key detail: difficulty modifiers prevent the Heroic and Legendary achievements from unlocking, but do not affect Easy or Normal.

If you plan to earn Heroes Never Die or Living Legend, do not enable any difficulty modifiers during that playthrough. You can safely use modifiers for Easy or Normal runs.

Skulls and Terminals: Collectibles Guide

Finding collectibles is a major part of the achievement list. Each of the thirteen missions has its own achievement for collecting all Skulls and Terminals in that mission. There are also cumulative achievements for total Skull collection.

Per-Mission Collectible Achievements (Bronze, 20 Gamerscore each):

• Clean Sweep — Pillar of Autumn
• Successful Search — Halo
• Plundered — Truth and Reconciliation
• Buried Treasure — The Silent Cartographer
• Stowed in Snow — Assault on the Control Room
• Proto Gravemind — 343 Guilty Spark
• Timeless Tomes — The Library
• Outpost Discoveries — Two Betrayals
• Priorities — Keyes
• No Rush — The Maw
• Souvenirs — New Mission 1
• Brute Loops — New Mission 2
• Parting Gifts — New Mission 3

Cumulative Skull Achievements:

• Cranial (Bronze, 10) — Collect one Skull
• Making a Necklace (Bronze, 20) — Collect 22 Skulls
• Headhunter (Silver, 30) — Collect all 39 Skulls

Terminal Achievement:

• Lore Have Mercy (Bronze, 10) — Activate all 13 Terminals

Completionist Achievement:

• Collector's Addition (Gold, 50) — Find every Skull and Terminal in the game

You can replay missions to pick up missed collectibles, so nothing here is permanently missable.

Remixed Missions

Remixed Missions offer altered versions of existing levels. Three achievements relate to this mode:

• REMIX! (Bronze, 10) — Complete one Remixed Mission
• Beat the Drop (Bronze, 20) — Complete a Remixed Mission without dying. Difficulty modifiers prevent this from unlocking.
• Mix Master (Silver, 40) — Complete an entire Remixed Campaign without dying. Difficulty modifiers also block this.

If you want Beat the Drop or Mix Master, play without modifiers active.

Combat and Vehicle Cumulative Achievements

Several achievements track cumulative actions across your entire playthrough. These do not require a single mission or run — they accumulate over time:

• Bad Gas (Bronze, 10) — Destroy 100 Grunt backpacks
• Plate Tectonics (Bronze, 10) — Break off 25 Hunter backplates
• New Whip (Bronze, 10) — Hijack 10 vehicles
• Disarmed (Bronze, 10) — Dismember 100 Flood parts
• Claims Adjuster (Bronze, 10) — Break off 50 vehicle parts
• Make Them Count (Bronze, 10) — Kill 100 enemies with headshots

LASO and Mythic

MYTHIC (Gold, 50) requires completing the Campaign with LASO enabled. LASO stands for "Legendary All Skulls On" — you must play on Legendary difficulty with every Skull active. Difficulty modifiers prevent MYTHIC from unlocking, so do not enable any.

Mission-Specific Challenges

Several achievements require specific actions during particular missions. Some are blocked by difficulty modifiers:

• Map Quest (Bronze, 10) — Complete The Silent Cartographer without shooting, using grenades, melee, dying, or restarting. Blocked by modifiers.
• That's My Ride (Bronze, 10) — On Assault on the Control Room, get to the Banshee before the Elite. Not blocked.
• Arm's Length (Bronze, 10) — On 343 Guilty Spark, complete the first floor without taking a hit. Blocked by modifiers.
• Clean Lap (Bronze, 10) — On The Maw, complete the warthog run without being forcibly ejected from your vehicle. Not blocked.
• Jiralhanae Conservationist (Bronze, 10) — On New Mission 2, don't kill any rampaging Brutes. Blocked by modifiers.
• Food Critic (Bronze, 10) — Listen to the Thirsty Grunt talk about his eating habits. Not blocked.
• All Shield, No Yield (Bronze, 10) — Complete any level on Heroic difficulty or higher without taking health damage. Blocked by modifiers.

Skull-Specific Challenges

Two achievements require specific Skull combinations:

• Hot Streak (Bronze, 20) — With the Floor Is Lava Skull activated, beat a mission without jumping or dying. Blocked by modifiers.
• Even Tempered (Bronze, 20) — With the Temperamental Skull activated, beat Halo without upsetting anyone. Not blocked.
• Like Old Times (Bronze, 20) — Complete Two Betrayals with the Speed Limit, Endurance Spec, Hip Fire, and Armistice Skulls enabled. Blocked by modifiers.
• Frugal Fire (Bronze, 20) — Equip Famine, Recession, and Johnny Ammo Seed Skulls and beat a mission without running out of ammo. Blocked by modifiers.

Unique Encounter Achievement

• This is My Ship Now (Bronze, 10) — Eliminate Captain Keyes and trap his six avenging Marines in the Autumn's observation pen. Not blocked by modifiers.

Completion Achievement

• Fully Evolved (Platinum, 50) — Complete every achievement or collect every trophy. This is the final completion award.

Sources

• Achievement List | Halo: Campaign Evolved — Official Halo Waypoint announcement with full achievement table, descriptions, and modifier restrictions.
• Halo: Campaign Evolved | 28 Minute Gameplay Demo - Assault on the Control Room — Gameplay demonstration showing mission structure and environment details.