Complete Operation D
Complete any campaign mission with the maximum number of Skulls active
Complete Operation C
Complete Operation B
Complete Operation A
Keep all Wolverines intact in Operation A, Mission 3
Earn your first Gold star in an operation mission
Earn a star of any type in an operation mission
Use every ability in the campaign at least once
Complete Operation F, Mission 4 with the Blind and Thunderstorm Skulls active
Earn all Gold stars in Operation F
Destroy all Mega Turrets with the Grizzly tank in Operation F, Mission 2
Complete Operation F
Complete all campaign mission specific Assault Ops in campaign A to E
Complete Operation E, Mission 1 with the Hollow and Black Eye Skulls active
Earn all Gold stars in all operation missions
Score a kill with every handheld weapon in the campaign
Earn all medals in the campaign at least once
Earn 25,000 XP throughout your career
Finish the objective without using any vehicles/turrets in Operation E, Mission 4
Finish the objectives using only the Brute Shot, melee and grenades in Operation D, Mission 1
Kill a convoy target with every stationary gun in Operation C, Mission 3
Finish the mission without any Jackal regenerating its shield in Operation B, Mission 3
Complete Operation E
Complete all Operation F mission Assault Ops
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