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Unlockable: Gold Skull Locations

Black Eye (Located: Crow’s Nest)

When activated, you will have to battle enemies with melee tactics to regain shield energy.

Catch (Located: The Storm)

When activated, enemies will throw more grenades.

Famine (Located: The Ark)

When activated, dropped weapons will hold less ammunition.

Fog (Located: Floodgate)

When activated, the motion tracker disappears.

Iron (Located: Sierra 117)

When activated, you will be sent back to the beginning of the stage you’re on when you die instead of to the last checkpoint.

Mythic (Located: Halo)

When activated, all enemies will have twice as much health.

Thunderstorm (Located: The Covenant)

When activated, enemies will be of a higher rank.

Tilt (Located: Cortana)

When activated, enemies will become more resilient to your attacks.

Tough Luck (Located: Tsavo Highway)

When activated, enemies are skilled at getting away from projectiles such as grenades.