| Achievement | How to unlock
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| - Complete A Nasty Surprise mission on Medium difficulty.
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| - Complete the TRO Achilles Heel mission on Medium difficulty.
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| - Complete the An Unexpected Connection mission on Medium difficulty.
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| - Complete the Behind Enemy Lines mission on Medium difficulty.
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| - Complete the TRO Blitzkrieg mission on Medium difficulty.
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| - Complete the Bring it Home mission on Medium difficulty.
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| - Complete the Clear the Path mission on Medium difficulty.
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| - Complete the TRO Close Target Wrecky mission on Medium difficulty.
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- Controlling the High Ground
| - Complete the Controlling the High Ground mission on Medium difficulty.
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- Decorated Combat Commander (secret)
| - Complete all missions on Very Hard difficulty. (Secret)
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| - Complete the TRO Dire Straits mission on Medium difficulty.
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| - Complete the Eagle's Nest 1 mission on Medium difficulty.
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| - Complete the Escape from Mars mission on Medium difficulty.
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| - Complete the Flying Solo mission on Medium difficulty.
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| - Complete the TRO mission From Out of Nowhere on Medium difficulty.
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- Frustrate Their Knavish Tricks
| - Complete the TRO Meanwhile, Frustrate Their Knavish Tricks mission on Medium difficulty.
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| - Complete the TRO Grand Theft Portal mission on Medium difficulty.
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| - Complete the TRO Hidden Enemy mission on Medium difficulty.
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| - Complete the TRO Hook, Line, and Sinker mission on Medium difficulty.
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| - Complete the IO's Bridge mission on Medium difficulty.
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| - Complete the TRO Leave Home mission on Medium difficulty.
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| - Complete the TRO Lifeline mission on Medium difficulty.
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| - Complete the TRO Light Up and Let Go mission on Medium difficulty.
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- Meanwhile, Back at the Ranch...
| - Complete the TRO Meanwhile, Back at the Ranch... mission on Medium difficulty.
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| - Complete the TRO New Kids on the Block mission on Medium difficulty.
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| - Complete the TRO Out There Somewhere mission on Medium difficulty.
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| - Complete the Precious Cargo mission on Medium difficulty.
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| - Complete the TRO Protection mission on Medium difficulty.
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| - Complete the Punishing the Black Dogs mission on Medium difficulty.
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| - Complete the Reclaim our Base mission on Medium difficulty.
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| - Complete the Red Arrival mission on Medium difficulty.
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| - Complete the TRO mission Rescue Me on Medium difficulty.
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| - Complete the TRO Spilt Milk mission on Medium difficulty.
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| - Complete the TRO Stranded mission on Medium difficulty.
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| - Complete the Strike at the Heart mission on Medium difficulty.
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| - Complete the Tapping the Core mission on Medium difficulty.
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| - Complete the TRO Terra Incognita mission on Medium difficulty.
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| - Complete The Three Beacons mission on Medium difficulty.
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| - Complete the TRO The Best Laid Plans mission on Medium difficulty.
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| - Complete the TRO The Enemy Within mission on Medium difficulty.
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| - Complete The Evil Battalion mission on Medium difficulty.
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| - Complete The Golem Ambush mission on Medium difficulty.
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| - Complete the 4 Combat Exercises to unlock The Playground.
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| - Complete The Race is On mission on Medium difficulty.
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| - Complete The Relic Discovered mission on Medium difficulty.
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| - Complete The Ultimate Quake mission on Medium difficulty.
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| - Complete the Total Destruction mission on Medium difficulty.
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- United We Fight - United We Die
| - Complete the United We Fight - United We Die mission on Medium difficulty.
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| - Complete the TRO Wolf in Sheep's Clothing mission on Medium difficulty.
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- Wrangling the Fleeing Herd
| - Complete the Wrangling the Fleeing Herd mission on Medium difficulty.
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