- Recruit
Earn a star of any type in an operation mission
1 guide
- Prodigy
Earn your first Gold star in an operation mission
2 guides
- 117
Earn all Gold stars in all operation missions
2 guides
- Pension Plan
Earn 25000 XP throughout your career
4 guides
- Distinguished Service
Earn all medals in the campaign at least once
2 guides
- Weapon of Choice
Score a kill with every handheld weapon in the campaign
1 guide
- Powered by MJOLNIR
Use every ability in the campaign at least once
1 guide
- Skull Combo
Complete any campaign mission with the maximum number of Skulls active
2 guides
- Vidmaster Challenge
Complete Operation E, Mission 1 with the Hollow and Black Eye Skulls active
4 guides
- Extra Credit
Complete all campaign mission specific Assault Ops
4 guides
- Archeology
Complete Operation F
1 guide
- Silvertip
Destroy all Mega Turrets with the Grizzly tank in Operation F, Mission 2
5 guides
- Vidmaster Challenge 2.0
Complete Operation F, Mission 4 with the Blind and Thunderstorm Skulls active
5 guides
- Flooded
Complete all co-op missions
2 guides
- Overachiever
Earn all co-op medals at least once
1 guide
- Dynamic Duo
Earn all Gold stars in all co-op missions
1 guide
- Extermination
Kill 10,000 enemies in co-op
1 guide
- Immune
Finish a co-op mission without becoming infected
5 guides
- The Company of Strangers
Complete a co-op mission with at least 5 different players
2 guides
- The Enemy of my Friend
Get a higher individual score than your partner on all co-op missions
2 guides