| Achievement | How to unlock
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|---|
| Arsonist | Cleanse 500 infected with fire.
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| Bean Counter | Cure 10 or more infected with a single grenade.
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| Captain | Complete any official mission on average without dying.
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| CEO | Complete Office on insane.
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| Citizen | Complete Cityblock on average or higher.
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| Clerk | Complete Office on average or higher.
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| Colonel | Complete any official mission on insane without dying.
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| Conservationist | Complete any official mission without using a primary weapon or equipment on skilled or higher.
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| Foreman | Complete Flatline on insane.
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| Healer | Provide your team with 2500 total health.
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| Hermit | Complete Bunker on insane.
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| It's How You Use It | Cure 250 infected with the MP5k.
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| Just Following Orders | Cure 10,000 total infected.
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| KDR | Cure 100 infected in a single life.
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| Lieutenant | Complete any official mission on casual without dying.
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| Major | Complete any official mission on skilled without dying.
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| Mayor | Complete Cityblock on insane.
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| Mean Left Hook | Cure 150 infected with your fist.
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| No-one Left Behind | Cure 250 infected soldiers.
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| Point Duty | Cure 500 infected with the XM1014.
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| Pump Action | Cure 250 infected with the M3.
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| Quicker Than Reloading | Cure 500 infected with pistols.
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| Spray 'n' Pray | Cure 500 infected with the Galil.
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| Supreme Sacrifice | Take 5 or more infected with you in a grenade suicide.
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| Surgical Precision | Cure 400 infected with the PSG1.
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| They Took Our Jobs | Cure 500 infected with the sentry gun.
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| Underground | Complete Bunker on average or higher.
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| Unfriendly Fire | Complete any official mission with no friendly fire incidents on skilled or higher.
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| Veteran | Conplete 100 successful missions average or higher.
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| Work Force | Complete Flatline on average or higher.
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