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Leave It to the Pro

Complete the entire game on Professional.

Leave It to the Pro0
2 guidesOnline/OfflineSingle PlayerCooperativeMain StorylineDifficulty Specific
merciful84merciful841,041,960
03 Dec 2014 03 Dec 2014
1 0 0
Choose chapter select, whoever's campaign, and simply play the last section of each chapter on Professional difficulty. The game registers a chapter's entire completion based upon the final section's completion. Do this for every chapter of everyone's campaign and this trophy should be yours in a short amount of time. The difficulty stacks, so you will receive all the other difficulty related trophy upon unlocking this one.