Here is the full list of all 25 7th Sector achievements.
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Final 1
Final 2
Final 3
100 deaths
Activate all phantoms
Yes, wait for phantom again !
Phantom in a brick house
Phantom
Water the lawn
Robots are people too
Wait for the train at the factory
Do not shoot!
Final 4
Free a prisoner
Phantom in base C 512
Run starter
Kill the man in the factory
Destroy the first machine gun
Off the transformer after the conveyor
TV phantom on the train
Another phantom in the apartment
Wait for TV phantom
Well, try again