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