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