Halo: Campaign Evolved has 13 missions: 10 rebuilt Halo: Combat Evolved levels and three Operation: METEORITE missions. A first run through all 13 usually takes about 10 to 14 hours, depending on difficulty, co-op, and how much you explore.
GamesRadar estimates 8 to 12 hours for the rebuilt 10-mission campaign, 10 to 14 hours with Operation: METEORITE, and more than 20 hours for a completion-focused run. Its guide writer finished all 13 missions on Heroic in about 13 hours. Your time will vary with difficulty, co-op, collectibles, and Campaign Remix.
If you plan to play with friends, open the Halo: Campaign Evolved co-op guide first. Every mission supports campaign co-op.
How Many Missions Are in Halo: Campaign Evolved?
- 10 original missions rebuilt from Halo: Combat Evolved.
- 3 bonus missions in the new Operation: METEORITE story.
- 13 missions total in the complete campaign package.
Halo: Campaign Evolved Mission List in Order
1. Pillar of Autumn
The opening mission introduces the Master Chief, the Covenant attack, and the escape from the UNSC ship. It is a compact tutorial for weapons, movement, Marines, and close corridors.
2. Halo
The campaign opens into the ringworld. You rescue scattered Marines, learn vehicle travel, and see how large outdoor combat spaces connect several objectives.
3. Truth and Reconciliation
A nighttime canyon assault leads into a Covenant ship. The mission mixes long-range combat, gravity-lift pressure, and a rescue operation.
4. The Silent Cartographer
The beach landing and island search create one of the campaign's most replayable spaces. Vehicles, side routes, and the map-room objective reward exploration.
5. Assault on the Control Room
A long push through snow, bridges, interior halls, and vehicle battles ends at Halo's control room. Budget extra time on a first run.
6. 343 Guilty Spark
The story changes direction in a swamp and underground facility. Move carefully, watch environmental clues, and avoid rushing past dropped weapons and exits.
7. The Library
This mission is a sustained survival run through repeated Flood encounters. Ammo management, movement, and knowing when to keep advancing matter more than clearing every enemy.
8. Two Betrayals
You return through familiar spaces with new enemies and objectives. The mission is long, vehicle-heavy, and more demanding on Heroic or Legendary.
9. Keyes
The search for Captain Keyes returns to the Covenant ship under very different conditions. Tight paths and Flood pressure can make navigation confusing.
10. The Maw
The original story ends with combat aboard the Pillar of Autumn and the famous Warthog escape. Leave time for the final run instead of stopping after the last normal encounter.
11. Boarding Action
Operation: METEORITE begins aboard a Covenant agricultural ship. The new arc follows Master Chief and Sergeant Johnson one year before the events of the original campaign.
12. The Most Dangerous Game
The second METEORITE mission expands the new threat and environments. It belongs to the bonus arc rather than the original ten-mission sequence.
13. Heavy Burden
The third METEORITE mission closes the standalone operation. Halo Studios' achievement list names it Heavy Burden. Halo Support's Terminal list currently says Bitter Harvest, while the same support page's achievement table says Heavy Burden; both pages still confirm a 13-mission total.
Should You Play Operation: METEORITE Before or After the Main Campaign?
Play the original ten-mission campaign first, then start Operation: METEORITE. The new arc is set one year before Halo: Combat Evolved, but Halo Studios has described it as a separate story intended to be played after the original campaign.
That order gives a new player the cleanest introduction to Master Chief, Cortana, Halo, the Covenant, and the Flood. Returning players can start METEORITE sooner, but its new weapons, enemies, and ideas make more sense after revisiting the rebuilt original.
How Long Does Halo: Campaign Evolved Take to Beat?
Main Campaign: About 8 to 12 Hours
A Normal-difficulty first run through the original ten missions usually sits in this range. Familiar players may finish faster, while exploration, deaths, and difficult vehicle sections can add several hours.
All 13 Missions: About 10 to 14 Hours
Operation: METEORITE adds three missions. The combined estimate covers the rebuilt main story and the complete bonus arc without stopping for every collectible or challenge.
Completion Run: 20 Hours or More
All 39 Skulls, 13 Terminals, higher difficulty clears, mission-specific achievements, Campaign Remix, and co-op replays add much more time. LASO and no-death Remix achievements can extend the total far beyond a normal completion run.
Co-op Can Change the Estimate
A coordinated Fireteam can clear fights quickly, but revives, regrouping, collectible detours, and difficulty scaling can make a social run longer. The host's unlocked missions and rally points determine what the group can select.
How Many Levels Are in Halo: Combat Evolved?
The original Halo: Combat Evolved campaign has 10 levels. Campaign Evolved rebuilds those same ten and adds three new missions, so searches for the older game and the 2026 remake can produce different totals. Use 10 for the 2001 campaign and 13 for Campaign Evolved.
How Many Skulls and Terminals Are in Each Mission?
Every one of the 13 missions contains one Terminal and three Skulls. That creates a full-game total of 13 Terminals and 39 Skulls. The official achievement list includes separate all-mission collectible achievements and a final reward for finding every Skull and Terminal.
Use the complete Halo: Campaign Evolved Skull locations guide to collect all 39 without replaying entire missions.
The matching Halo Terminal locations guide lists the one Terminal hidden in each mission.
Which Missions Take the Longest?
Assault on the Control Room and Two Betrayals are usually the biggest time commitments because they combine long travel distances, vehicles, repeated combat spaces, and several major objectives. The Library can also take longer on a first run because Flood pressure punishes slow inventory decisions.
The Silent Cartographer and Halo can expand when a player explores optional routes or loses track of the next objective. Use mission markers and vehicles, but do not drive past collectible areas if the run is also targeting Skulls and Terminals.
Best Difficulty for a First Playthrough
Normal for the Story and Exploration
Normal gives new players room to learn classic Halo weapon roles, shield timing, grenades, vehicles, and enemy behavior. It is the easiest setting for combining the story with a first collectible sweep.
Heroic for the Classic Halo Challenge
Heroic creates tougher encounters without demanding the extreme caution of Legendary. Experienced shooter players who want combat to stay tense can begin here.
Legendary for a Second Run
Legendary is better after learning the mission layouts. Longer levels become much more punishing when a death sends the player back through a difficult checkpoint, and co-op does not remove the need for careful weapon and position choices.
Can You Play All 13 Missions in Co-op?
Yes. Halo Waypoint says both the original campaign and Operation: METEORITE are included in the 13-mission co-op campaign. Online play supports up to four people across Xbox Series X|S, PlayStation 5, and PC. Console versions also support two-player local split-screen.
Shared progression can grant mission and rally-point unlocks to Fireteam members, but the leader's campaign state controls the selectable content during the session. Choose the player with the most useful mission progress as leader when the group wants a specific level.
Mission Select, Rally Points, and Replaying Levels
Completed missions and unlocked rally points can be selected again for collectibles, difficulty achievements, or Campaign Remix. Rally points shorten cleanup runs, but starting too late in a mission can skip an earlier Skull or Terminal.
Cross-progression synchronizes mission and rally-point unlocks, Skulls, Terminals, and achievements through the linked Microsoft account. It does not carry a mid-mission checkpoint or exact player position from one platform to another.
How to Plan a Complete 13-Mission Run
First Run: Story and One Terminal Per Mission
Play the original ten missions in order, then continue into Operation: METEORITE. A Terminal is easier to track than three Skulls during a blind run, so collecting the single Terminal in each mission creates a useful first checklist without constantly interrupting combat.
Second Run: Skulls and Mission Achievements
Use mission select to collect the missing Skulls and attempt objectives tied to a specific level. Check the mission guide before choosing a rally point, because a late start can place the Fireteam after the collectible or challenge setup.
Third Run: Heroic, Legendary, or Campaign Remix
Move to harder modes after learning the routes, vehicle sections, weapon rooms, and difficult checkpoints. Campaign Remix changes encounters and visibility, so it rewards familiarity with the normal level rather than replacing the best first playthrough.
Save the Long Missions for a Full Session
Do not start Assault on the Control Room, Two Betrayals, or The Library when only a few minutes remain. Halo missions are built around long combat sequences, and cross-platform progression does not preserve every mid-mission checkpoint if you switch systems.
How to Avoid Losing Mission Progress
Finish the mission or reach a named rally point before changing platforms. A normal checkpoint can protect the current session, but it will not sync as an exact resume position elsewhere. In co-op, remember that the session ends if the Fireteam Leader disconnects.
After completing a level, return to the mission menu and confirm the unlock before closing the game. That quick check is especially useful after a co-op session in which the leader selected a mission you had not reached in your solo campaign.
Halo: Campaign Evolved Mission FAQ
Does Halo: Campaign Evolved Have 10 or 13 Missions?
It has 13. Ten are rebuilt from Halo: Combat Evolved, and three belong to Operation: METEORITE.
What Are the Three New Missions?
Boarding Action, The Most Dangerous Game, and Heavy Burden are the three Operation: METEORITE missions.
Is Operation: METEORITE Part of the Main Story?
It is a standalone three-mission arc set one year before Halo: Combat Evolved. The recommended order is to finish the original campaign first.
How Long Are the Bonus Missions?
Together they add roughly two hours to a straightforward first playthrough, though difficulty, exploration, collectibles, and co-op pace can change the result.
Are There Collectibles in the New Missions?
Yes. Each METEORITE mission has one Terminal and three Skulls, matching the collectible structure used across all 13 missions.
Is There Competitive Multiplayer?
No. Campaign Evolved focuses on the rebuilt campaign, solo play, local console co-op, and online cross-platform co-op.
Where Can I Find More Halo Guides?
Open the Halo: Campaign Evolved game page for the latest mission, collectible, and co-op guides.
