Kill 10,000 enemies in co-op
Get a higher individual score than your partner on all co-op missions
Earn 25000 XP throughout your career
Earn all Gold stars in all co-op missions
Complete a co-op mission with at least 5 different players
Complete all co-op missions
Finish a co-op mission without becoming infected
Earn all medals in the campaign at least once
Complete Operation F, Mission 4 with the Blind and Thunderstorm Skulls active
Use every ability in the campaign at least once
Complete Operation D
Score a kill with every handheld weapon in the campaign
Complete Operation E, Mission 1 with the Hollow and Black Eye Skulls active
Complete Operation E
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
Complete Operation C
Kill a convoy target with every stationary gun in Operation C, Mission 3
Complete Operation B
Finish the mission without any Jackal regenerating its shield in Operation B, Mission 3
Complete Operation F
Destroy all Mega Turrets with the Grizzly tank in Operation F, Mission 2
Complete Operation A
Complete any campaign mission with the maximum number of Skulls active
Keep all Wolverines intact in Operation A, Mission 3
Earn a star of any type in an operation mission
Earn your first Gold star in an operation mission
Earn all Gold stars in all operation missions
Complete all campaign mission specific Assault Ops
Earn all co-op medals at least once
