Steam Community :: Guide :: Complete: All 17 Expert ...
Complete 7 expert missions. It can be done by completing 7 times the same mission, 7 different missions or a mix of both. You Really Are A Hero! Complete all Expert Missions! It is unlocked after beating mission 17, If you have passed all the other missions (you need a ranking Z-S-A-B-C-... for the game to acknowledge you have completed a mission).
DA: 22 PA: 48 MOZ Rank: 92