Halo: Campaign Evolved Skulls Guide and Tracker

Track all 42 Halo: Campaign Evolved skull modifiers, including 39 mission collectibles and three Campaign Remix modifiers.

VIEW ALL 39 SKULL LOCATIONS

Halo: Campaign Evolved has 42 skull modifiers in total. Official material divides them into 26 returning skulls and 16 new skulls. Of the 42, 39 are collectibles placed across the 13 campaign missions; the other three are built into Campaign Remix.

Halo: Campaign Evolved Skull Collection Structure

Area	Missions	Collectible skulls	Pattern
Rebuilt original campaign	10	30	3 per mission
Operation: Meteorite	3	9	3 per mission
Campaign Remix defaults	—	3	Adaptation, Reload, Armistice
Total	13	42 modifiers	39 collected + 3 built in

All 42 skull modifiers

Showing 42 of 42 Skull modifiers

Marines: Now issued with rifles and wings...

Randomizes the enemy factions that appear in missions.

Enemies fire their weapons faster and more frequently.

Enemy factions no longer attack each other.

Grants unlimited ammunition and grenades.

Your shields recharge only when you melee enemies.

The HUD and weapon are hidden from the screen.

Explosion radius is increased to 2x.

Enemies throw and drop more grenades.

Objects have less physical mass and are easier to launch.

Enemies killed at full health drop more ammunition.

UNSC vehicles cannot take damage.

Auto-aim is disabled for every weapon.

Weapons dropped by enemies contain half the ammunition.

Standing on the ground continuously damages the player.

The motion tracker is disabled.

Players cannot use weapons belonging to other factions.

Enemies no longer flinch when attacked.

Firing drains shields; damaging enemies recharges them.

Grunt headshots trigger legendary celebrations.

Grunts die in a blaze of plasma.

Zoom is disabled for every weapon.

Co-op deaths reset the last checkpoint; solo deaths restart the level.

It would have been your dialogue.

Reloading discards any ammunition left in the removed magazine.

Headshots no longer deal bonus damage or instant kills.

The Assault Rifle uses a 60-round magazine as standard.

A random HUD element disappears after each respawn.

Enemies have increased health.

Changes the player camera to third person.

Meleeing enemies makes them drop inert grenades.

Shooting a Flood weak point causes it to explode.

Every shot consumes twice as much ammunition.

Randomizes the weapons placed throughout missions.

Take your time and enjoy the sights: sprint is disabled.

Weapons continue reloading while stowed.

Allies turn on the player faster after a friendly is killed.

Enemies are more aware of the player.

Combat Forms revived by Infection Forms become more dangerous.

Upgrades the rank of most enemies.

Amplifies positive and negative damage multipliers.

Enemies berserk, dodge constantly, and never flee combat.

Campaign Remix modifiers

Official descriptions identify three modifiers that are automatically active in Campaign Remix:

Adaptation — AI behavior changes in response to the player’s approach.
Reload — reloading can introduce an unexpected combat consequence.
Armistice — modifies how factions may interact during encounters.

Sources

Last reviewed: July 24, 2026

Halo: Campaign Evolved Skulls Guide and Tracker

Halo: Campaign Evolved Skull Collection Structure

All 42 skull modifiers

Acrophobia

Adaptation

Angry

Armistice

Bandana

Black Eye

Blind

Boom

Catch

Cowbell

Efficient

Endurance Spec

Eye Patch

Famine

Floor Is Lava

Fog

Foreign

Ghost

Give & Take

Grunt Birthday Party

Grunt Funeral

Hip Fire

Iron

IWHBYD

Johnny Ammo Seed

Leadhead

Magnified

Malfunction

Mythic

Perspective

Piñata

Pop

Recession

Reload

Speed Limit

Stowed Reload

Temperamental

That's Just... Wrong

They Come Back

Thunderstorm

Tilt

Tough Luck

Campaign Remix modifiers

Sources

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