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