Continue playing to unlock this secret achievement.
Complete a specific mission objective in Sharks in the Water
Complete a specific mission objective in Holidays in Hell in Local Co-op mode
Complete a specific mission objective in Sunshine Units
Complete a specific mission objective in City on Fire
Complete a specific mission objective in On the X
13 Achievements Unlocked
12 Achievements Unlocked
2 Achievements Unlocked
24 Achievements Unlocked
11 Achievements Unlocked