There are two endings in the game. A morally good and morally bad ending. You will need to preform morally good actions to obtain the good ending.
This achievement is for the bad ending. However, it is possible to both obtain this achievement during the good and bad ending. You will know if you have the good ending if at the end you regain control of your character and are able to shoot the laser targeting system. If you want this achievement then DON'T SHOOT
at it and wait until the launch sequence is complete. Alternatively if you get the bad ending then you will not regain control of your character. This will also trigger this achievement.
Since you can trigger both outcomes and both achievements by getting the good ending it is advisable to first shoot the system in the good ending achievement and then after the credits pressing continue from the main menu. You then have to play a few minutes over and this time at the end, don't shoot the targeting system to unlock this achievement.
More info on how to get the good ending and it's achievement:To obtain all achievements you have to play trough the game at least twice anyways so don't be annoyed if you get the bad ending on your first playtrough.