Achievements:
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Complete each achievement to get the allotted gamerscore.
Unlockable – How to Unlock
1 Secret Mission Cleared (20) – Clear 1 secret mission.
2 Secret Missions Cleared (20) – Clear 2 secret missions.
2 Secret Missions Cleared (30) – Clear 3 secret missions.
4 Secret Missions Cleared (40) – Clear 4 secret missions.
5 Secret Missions Cleared (50) – Clear 5 secret missions.
Cleared Story (50) – Clear the story.
Mission 10 Cleared (20) – Clear up to mission 10.
Mission 20 Cleared (30) – Clear up to mission 20.
Mission 30 Cleared (30) – Clear up to mission 30.
Mission 40 Cleared (40) – Clear up to mission 40.
Mission 5 Cleared (20) – Clear up to mission 5.
Mission 50 Cleared (50) – Clear up to mission 50.
