Centurion Helm and flags:
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Successfully complete all the tutorials with a gold medal
to unlock the Centurion Helm and flags.
Bonus maps:
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Successfully complete the indicated mission with a gold medal
to unlock the corresponding bonus map:
Best Defense : Mission 17
Check Mate : Mission 8
Construction Junction : Mission 6
Monkey Troop : Mission 5
The Blue Dragon : Mission 13
The Great Wall Brawl : Mission 11
The Question Of Faith : Mission 19
The Ship Of Fools : Mission 14
Tower Of Power : Mission 16
Under Construction : Mission 3
