Halo: Campaign Evolved 100% guide

The main campaign is the ten classic missions in their original order, from The Pillar of Autumn to The Maw.

Operation: METEORITE is a separate three-mission prequel under Campaign > Bonus Missions:

1. Boarding Action
2. The Most Dangerous Game
3. Heavy Burden

It is available from the start. This guide plays it right after The Maw, but you can play it first if you prefer.

Each mission becomes selectable once you have reached it, and you can then start it from any rally point it has unlocked. Difficulty is chosen each time you start a New Game from the menu. Each mission holds exactly three skulls and one terminal, for 39 skulls and 13 terminals in all.

Three more skulls (Adaptation, Reload and Armistice) unlock automatically once you have collected any three skulls. They are not part of the 39 that the achievements count.

Modifier Presets. These are found under Settings > Gameplay > Modifier Preset. While a preset is active, the following 11 achievements cannot unlock:

• Heroes Never Die
• Living Legend
• Beat the Drop
• Mix Master
• Hot Streak
• Like Old Times
• Frugal Fire
• MYTHIC
• Map Quest
• Jiralhanae Conservationist
• All Shield, No Yield

In co-op, every member of the fireteam must have the preset set to None. Leave it on None for this entire guide.

Restricted skulls. Halo Support confirms that the Acrophobia and Bandana skulls block certain achievements, but it does not say which ones. Safest route: never have either skull on while working toward anything in this guide, unless a section says otherwise.

Rally points. Some achievements need the mission played from the very beginning, and starting from a later rally point can void them. Halo Support confirms this for Clean Lap. Safest route: start every feat and skull-challenge attempt from the beginning of the mission.

1. Heroic campaign, all 13 missions. Collect every skull and terminal as you go, grab the Catch skull on Keyes, and work on the six counter achievements. Heroic is needed for the Catch skull, and it also unlocks Greenhorn, Birth of a Spartan and Heroes Never Die. It collects the 17 skulls that open LASO and the skulls that the skull challenges require.
2. Easy cleanup through mission select. Do every mission feat and skull challenge, in mission order.
3. Campaign Remix on Easy. Complete all 13 missions without dying.
4. LASO, all 13 missions. This earns MYTHIC, and community guides report that it also awards Living Legend.

If you'd rather not attempt LASO solo, line up a co-op partner for step 4 now.

These are the known issues as of 2026-10-07. The last patch was August 17, 2026.

• Mix Master stuck at 92% (CURRENTLY COMMUNITY-FLAGGED / BUGGY). Players have reported this into September 2026. See the Campaign Remix section for the safe way to play it.
• Delayed unlocks. Unlocks can be delayed. Halo Support says most arrive within 24 to 72 hours. If a tracker seems stuck, pick up the first skull in The Pillar of Autumn (Speed Limit, in the opening cryo room) with modifiers off to force a sync.
• Co-op credit for non-hosts (CURRENTLY COMMUNITY-FLAGGED / BUGGY). There are reports through late September 2026 of non-host players missing mission or difficulty credit, most often for The Maw. Replaying the missing mission as the host has fixed it for players.
• Split-screen notifications. Player 2 may not see achievement pop-ups until the group returns to the menu. Their progress is still tracked.
• Heavy Burden co-op cutscene (CURRENTLY COMMUNITY-FLAGGED / BUGGY). Halo Support's known-issues list (updated 2026-08-19) says skipping the cutscene before the space section in co-op can cause stability problems. Let it play.
• Two Betrayals Banshee (CURRENTLY COMMUNITY-FLAGGED / BUGGY). Halo Support's known-issues list (updated 2026-08-19) says you cannot progress if you destroy the Banshee after the first generator in Two Betrayals. No later patch has addressed it.

All six counters are cumulative across missions, sessions and playthroughs, and difficulty doesn't matter. Most fill naturally over four playthroughs. Two of them need a deliberate push.

These are the collectibles:

• Speed Limit skull (Rally Point Alpha): in the opening cryo room. Climb the two cylinder tanks against the back wall under the UNSC logo, jumping from the nearby console if that helps. Then jump to the catwalk with yellow tape and follow it to the end by the window.
• Magnified skull (Rally Point Alpha): in the armory a Marine leads you into while you are unarmed. It sits on top of one of the central weapon racks, so check the tops of the middle racks, starting with the first one you reach.
• Perspective skull (Rally Point Bravo): after the bridge cutscene, drop down below the pilots' seats at the front of the bridge. It is on the low floor of the viewport by the foot of the ladder.
• Approach terminal (Rally Point Charlie): late in the mission, after the vents, you reach the control room with a cracked window overlooking the cryo bay. Leave through the far door, take the first left into a small dark red-lit side room, and the terminal is at the back.

These are the collectibles:

• Forgotten terminal (Rally Point Alpha): in the first metal tunnel after you get the Warthog. Just after the first right bend and the two ramps, stop at the large gap in the right-hand wall. Step through and drop onto the first small ledge only, then turn around. The terminal is in the recess facing back toward the wall.

The mission ends automatically as soon as the last enemies at the lifeboat sites die, so grab these three skulls before finishing each site.

• Grunt Funeral skull (Rally Point Charlie): on the large Forerunner spire at the left-most lifeboat site. Climb the diagonal slope as far as it goes. Then throw a frag grenade at your feet and jump with the blast across to the higher ledge holding the skull.
• Give & Take skull (Rally Point Charlie): follow the river upstream into the central cave between the middle and right-hand sites. The skull floats behind the large boulder with fireflies around it.
• Floor Is Lava skull (Rally Point Charlie): at the right-most site, the rock maze with Jackal snipers. Climb the sloped grassy rock at the back and leap the gap to the next grass-topped rock. Then drop onto the lone rock just downhill near the lifeboat's scorch marks.

These are the collectibles:

• Iron skull (Rally Point Alpha): outside, before you take the gravity lift. Clear the area, including the Hunters. Then go to the back cliff edge near the tree with upright leaves, the cactus-like plants and a white light strip set into the ground. Look over the edge: the skull is on a small ledge below. If you can't climb back up, reload the checkpoint once the pickup notification has appeared, and later confirm Iron is listed on the main menu's Collectibles screen.
• Endurance Spec skull (Rally Point Bravo): in the cargo bay with two destroyed Wraiths. Enter on the upper walkway, go to the far end and turn right. The skull is on the third curved purple strut, the farthest one. Jump onto the purple container, then sprint-jump onto the sloped part of the first strut. Keep moving across the second to the third without stopping, or you slide off. If you fall, a doorway in the corner loops back up to the walkway.
• Foreign skull (Rally Point Bravo): in the hangar with the departing dropship, wait by the locked door on the right side, back corner. It opens briefly when reinforcements come out of it, so dash in. The skull is on the floor inside. Don't wipe out every enemy first; if the door closes, wait for the next spawn.
• Inquisitor terminal (Rally Point Charlie): past the room with three Jackals and the room with two Elites, take the door immediately on your right into detention. Use the central console to drop the cell shields. The terminal is in the lower-level cell with a dead Marine, not Keyes's cell.

This is also the first mission with a Hunter pair, so break their backplates for Plate Tectonics.

These are the collectibles:

• Bandana skull (Rally Point Alpha): in the cave beside the main facility entrance, on the ground in a sunlit clearing.
• Acrophobia skull (Rally Point Bravo): in the circular arena with two Hunters. Kill them, climb the central structure's diagonal beam, and turn and jump onto its central section. Then walk the horizontal beam to the raised end behind a tree, against the rock face.
• Status Update terminal (Rally Point Bravo): in the security override room. Go past the holographic console to the end of the room, and the terminal is tucked behind the small split metal plinth.
• Hip Fire skull (Rally Point Charlie): after the override, back in the first underground facility, kill the two Hunters by the lit ramp with blue lighting. Look over the edge for a small ledge far below, and walk off from slightly further down the slope to land on it.

Do not equip Bandana or Acrophobia now or at any point in this guide.

These are the collectibles:

• IWHBYD skull (Rally Point Bravo): you need the Scorpion. After the narrow bridge over the chasm, drive left to the end of the path at an icy wall and park against it. Climb onto the tank, using the cannon as a step, and jump into the small alcove in the ice.
• Tangent I terminal (Rally Point Charlie): after the ice tunnel, enter the tall central Forerunner structure at the fork on foot. A cloaked sword Elite waits inside. Go up the inner ramp to the balcony and turn right, and the terminal is at the end of the walkway. If you see Hunters, you've gone too far.
• Angry skull (Rally Point Charlie): past the narrow cave, on top of the third and farthest of the three metal arches over the trench.
• Cowbell skull (Rally Point Echo): on the outside bridge with two Banshees, drop from the middle of the bridge onto the structure beneath it and turn around. The skull is tucked under the bridge.

This mission has plenty of Ghosts, so use it for New Whip. Every time a Ghost approaches with a driver, step to its side and hold the prompt to board it. If you finish the mission still short of 10, come back later on Easy, start from Rally Point Charlie and keep boarding Ghosts.

These are the collectibles:

• Fog skull (Rally Point Alpha): early, by the Covenant dropship crashed in a tree. Go up the slope left of the ship and turn right at the top, then climb past the big roots. The skull is on a rock overlooking the fallen log, so grab it before you cross.
• That's Just... Wrong skull (Rally Point Bravo): a terrified Marine inside the bloody part of the facility shoots at you. Kill him and the skull drops.
• Tangent II terminal (Rally Point Bravo): during the escape, after the lift falls, cross back over the light bridge into the room with dead Marines and shotguns. Ignore the objective door and loop behind the thin central dividing wall into the narrow hallway behind it.
• They Come Back skull (Rally Point Charlie): during the evacuation defence, go right of or behind the lit tower into the dark forest. Climb onto the rock at the base of the big fallen tree and walk up its trunk to the higher rock ledge. Grab it before you kill the last enemies, because clearing them ends the mission.

These are the collectibles:

• Tilt skull (Rally Point Alpha): after the first Flood tunnel, as you enter the room with Sentinels, turn right. Climb the sloped strut beside the door you came through, and the skull is at the top.
• Tangent III terminal (Rally Point Bravo): after the first elevator, in the room with two panels, use the left one, not the objective. Go through the door it opens, shoot or crouch through the wall of growth blocking the gap, and the terminal is at the end beside a dead Marine.
• Pop skull (Rally Point Bravo): where the paths meet at the door Guilty Spark waits by, turn away from that door. Climb the metal slope on the opposite wall, sprint-jump across the decorative columns and land on the narrow ledge.
• Famine skull (Rally Point Charlie): at the bottom of the final big elevator, go down the ramp and turn left immediately into the small Flood alcove. It blends into the growth.

These are the collectibles:

• Alone terminal (Rally Point Alpha): at the start, destroy the four Sentinels, turn around and walk around to the back of the giant hologram globe.
• Tough Luck skull (Rally Point Alpha): once you have a Banshee, fly back to the building you left and up to the ledge at the top of the large fin, in front of the blue beam. Slow down by holding back and land on it, or hop out right beside it; flying too high triggers the out-of-bounds warning. To get down, drop to the lower platforms one at a time. If a checkpoint saves while you are stranded, restart from Rally Point Alpha once the pickup notification has appeared.
• Black Eye skull (Rally Point Charlie): after the first conduit, take the lift down into the canyon with three arch bridges. Cross the middle arch and bear right into the small dead end of Flood growth. The skull is on a snow-capped stone, so use your flashlight.
• Mythic skull (Rally Point Charlie): fly a Banshee to the platform on top of the central tower near the second generator and use the centre panel. It opens a door on the opposite landing. Fly there and clear the first room, then use its far console. Clear the corridor and use the next console, then clear the final room, which has Flood tank forms and infected Hunters. Every enemy must die before each console works. The skull spawns on the central pedestal.

The Catch skull is the trickiest collectible in the game, so go for it before anything else in this mission. It only appears if you reach the gravity lift fast enough on Heroic or Legendary, and Heroic counts. The timer is hidden. Getting there in under 3 minutes is known to work, while slower runs only sometimes do, so aim for under 3.

1. Start Keyes from Rally Point Alpha with no skulls equipped at all. Acrophobia is confirmed to stop Catch from spawning. Reports conflict on other skulls, ammo modifiers and Campaign Remix, so this guide uses a clean attempt with none of them.
2. Ignore every fight and sprint straight to the gravity lift. Use the coolant drop shortcut and grab the Overshield near the lift. Kill only the Covenant on the lift platform, because the lift stays off until they're dead.
3. Stand in the centre of the lift and hold interact as soon as it starts rising. The skull hangs in the beam, and after a very fast run it can land on the floor at the top instead, so check there too.
4. Reloading a checkpoint doesn't reset the timer. If you miss the skull, restart the mission from Rally Point Alpha.

Once you have Catch, collect the rest at your own pace:

• Blind skull (Rally Point Bravo): after the lift, you arrive on the upper level of a vehicle bay. Drop to the floor and take the doorway past the Ghosts and Wraiths, where Flood pour out. Crouch under the destroyed Wraith and crates blocking the corridor, keeping to the left wall, or jump over them. Follow the corridor to its end, and the skull is in the corner by the large locked door.
• Consumed terminal (Rally Point Charlie): when you enter the shuttle bay ("Ascend to the upper deck"), ignore the objective. Turn left through the lower-level door and follow the winding corridor, clearing the two Hunters fighting Flood there. The terminal is in an alcove at the corridor's dead end, beside a locked door.
• Piñata skull (Rally Point Charlie): after the cutscene with Keyes, face the Flood mass that holds him and melee it three to five times. The hits show no reaction, and then the skull drops in front of you.

Get the first three collectibles before the Warthog run:

• Arrival terminal (Rally Point Alpha): in the mess hall, in a small alcove by the broken vending machines, before the fire at the back. Check the right wall first, then the left.
• Stowed Reload skull (Rally Point Bravo): in the cryo room opposite the Chief's original one, with four pods in the middle. Go to the fire-lit back left corner, climb the collapsed walkway and jump to the support beam against the back wall. The skull is at its tip.
• Boom skull (Rally Point Bravo): in the engineering room with four cores. Go to the right side of the upper level, near the far console. Drop onto the small platform with debris below a wide opening, then drop again onto the narrow ledge below, going left of the debris. Crouch as you land so you don't slide off.

During the Warthog escape, the corridors have shortcut tunnels on the right. The first one is a dead end. The second right-hand shortcut tunnel holds both the Thunderstorm skull and the Thirsty Grunt. Leave Clean Lap for the Easy cleanup, which keeps that run simple.

• Thunderstorm skull (Rally Point Charlie): stop halfway through the second right-hand shortcut tunnel and get out. The skull is on the floor on the right, in the flames. If that tunnel is empty, you've miscounted, so check the next one.

These are the collectibles:

• Malfunction skull (Rally Point Alpha): after the first pair of white-armored Hunters, ignore the objective and go down the ramp to the lower hangar with a docked dropship. Go through the door beside it, past a turret, and into the room with a walkway. The skull is midway along the walkway, overlooking the starting hangar. Get it before you take the gravity lift up.
• Johnny Ammo Seed skull (Rally Point Bravo): clear the white and gold Elite training room with the sand floor, climb to its second floor, and leave by the upper left door at the back. It brings you out on the upper walkways of the previous big white room, where Elites with energy swords ambush you. Kill them, then take the skull from the curved walkway that reaches toward the middle of the room.
• Leadhead skull (Rally Point Delta): in the room with the vertical tractor beam, survive the enemy waves, Brutes included. When the last wave ends, the doorway left of the lift platform opens. Follow its corridor to the dead end.
• The Path terminal (Rally Point Delta): ride the gravity lift up, turn around and go through the blue door in the back right corner. The terminal is on the wall just inside, to the right.

The Temperamental skull is earned, not found. Start from Rally Point Alpha. A golden Elite with an energy sword appears three times, and you must break or damage his shield at every appearance in the same run. He can't be killed, and if he escapes, reload the checkpoint.

1. In the wooded area, he stands on a ledge on the right above the trees and the Jackal snipers.
2. At the far end of the big purple bridge arena, he is behind the Wraith in front of a large door. He flees quickly, so a Sniper Rifle helps.
3. As you step back outside after the prison, he is up on the left, and Johnson marks him.

Once you have hit him all three times and cleared the final outdoor arena, the skull appears on the glowing central pylon. Jump up to take it.

The other collectibles:

• Recession skull (Rally Point Bravo): at the prison entrance bridge, with a Wraith at the far end, turn back to the locked door on the near side. Shoot the fuel canisters in the flames on top of both pillars beside it, and the door opens with the skull on the floor inside.
• Ghost skull (Rally Point Charlie): after the Banshee ambush and the gravity bridge, go through a short cave to the gate of an outdoor arena. Clear the arena first. The skull is in a purple brazier above the gate on the arena side, so check the braziers on both sides. Climb the trees and cliff ledges along the left wall and hop across.
• Penitent Report terminal (Rally Point Charlie): after freeing the Marines, go up the ramp into the room with pink windows on the left. Take the right-hand door, and the terminal is on the raised centre of the storage room. This comes just before the Elite's third appearance.

Jiralhanae Conservationist belongs to the Easy pass, so kill Brutes freely now.

These are the collectibles:

• Eye Patch skull (Rally Point Alpha): after the big bridge room with Hunters, don't cross the main bridge. Take the door and higher walkway on the left that runs alongside it, and the skull is at the far end on a narrow ledge right of a locked door.
• Grunt Birthday Party skull (Rally Point Bravo): in the three-floor white and gold atrium with a rock pillar topped by yellow foliage in the middle. Enter at the top, go left and drop to the platform below. Sprint-jump from the circular platform with the purple fire pit onto the pillar, then jump and grab the skull while holding interact.
• Harmonious Clarity terminal (Rally Point Bravo): after the bridge-room fight, ignore Johnson's upper door and take either unlocked ground-floor door at the back. Go through the armory rooms to the back room, and the terminal is on the left behind the weapon pods.
• Efficient skull (Rally Point Charlie): on the floating platform ride, after you restore power, pass the room with a bridge overhead. In the next room, jump onto the left side platform and sprint to its far back corner. Stepping off starts an out-of-bounds timer of roughly 10 seconds. The pickup counts even if you die afterwards, but jump back to the ride if you can.

Map Quest and Frugal Fire combine well in a single run. Never firing your weapon means you never run out of ammo.

• Play solo on Easy with modifiers on None.
• Start each mission from Rally Point Alpha.
• Play all 13 missions: the ten main missions, then Operation: METEORITE from the Remix menu.
• Progress is tracked mission by mission, so a death only costs you the current mission. After a death, back out to the Campaign Remix menu and launch the mission again. Restarting from the pause menu is reported to be unreliable, and reloading a checkpoint after a death doesn't save the mission.
• The game doesn't show which missions have registered. Each clean mission adds about 7.7% to Mix Master's Xbox progress, so check it after every mission and keep your own list. If a clean mission didn't add progress, replay it from Rally Point Alpha.
• It's not confirmed whether a co-op partner's death fails the run, which is why this pass is solo.

Co-op. Co-op is strongly recommended. In solo, the Iron skull restarts the whole mission when you die. In co-op, a death only sends the team back to the last checkpoint. Every member of the fireteam needs modifiers set to None. The player who needs the achievements should host, because non-hosts have reported missing credit. If they do miss a mission, replay it with them as host. In Heavy Burden, don't skip the cutscene before the space section in co-op. Halo Support lists skipping it as a cause of stability problems (CURRENTLY COMMUNITY-FLAGGED / BUGGY, known issue updated 2026-08-19). If a navigation marker won't advance, regroup: Halo Support notes that markers only progress once every fireteam member has passed them.

Shields and aim.

• Black Eye means shields only come back through melee kills, so melee weak enemies from behind to refill them.
• Eye Patch removes aim assist, and Fog removes your motion tracker. Take your time and check your corners.
• Malfunction can hide part of your HUD after a respawn.

Allies. Temperamental and Grunt Funeral together make it easy to anger your allies. Throw grenades carefully around Marines.

Ammo. Famine halves the ammo in dropped weapons, so reload only when you're empty. Plasma Pistol overcharges strip shields and disable vehicles cheaply.

Getting through missions. Drive past fights whenever a vehicle allows it. The Library and Keyes are the toughest for most players, and The Maw's Warthog escape and the Truth and Reconciliation gravity lift are common walls too.

Quitting. Save and Quit keeps your checkpoint between sessions, but reports conflict on whether a resumed mission always counts. If a mission didn't add MYTHIC progress, replay it from the start.

Check the six counters first. New Whip is usually the one that's short, so finish it with Ghost hijacks in Assault on the Control Room. For Claims Adjuster, use the vehicle farm in Heavy Burden's flying section. Then look over the per-mission achievements and the feats for anything a bug may have swallowed, and replay the missions involved.