Alien: Isolation
50 Achievements
30-35h
Just out of Reach
Contact your team and escape Comms without being attacked by an android
4.8%
How to unlock the Just out of Reach achievement in Alien: Isolation - Definitive Guide
I should note I was doing this on Medium difficulty and so I can't say weather the Androids react differently on Hard.
My video with commentary shows a step by step guide to getting it.
During the whole mission you are not allowed to attack an android or be attacked by one. If you get chased, you can still hide and try to make it, or you load up the mission again. You can also make manual saves at the phones and keep the progress.
GENERAL TIPS:
Once you take the elevator(3:08), it is best that you stay undetected until the cutscene because you have to walk the same way back and it makes the movement of the androids unpredictable if they chase you from the elevator room.
On your way back you will come across a couple of androids standing in your path. Avoid them by sneaking past them through nearby room. Once you're back where you started, you only have to activate the elevator. So it doesn't matter if you get chased at the end.
I recomend you save game in every save point, so you can load the game if you get caught.
This can be gotten during mission 4 when you first enter Seegson Communications. What you need to do is to not come in contact with the Androids throughout this mission. It is ok if they see you they just can't catch you. This can be done via mission select on Easy if you choose to. If you are caught then just reload you last save and you should be fine.
You can sneak past most areas fairly easily, the tricky part is after you make contact with your crew. The Androids will be alerted to a disturbance and will head to your area. I suggest running out if that room and hiding behind a crate until the first 2 Androids pass, after this you are safe to run. Once you return to the open area you can head into the vent that is before the save point to escape the androids and once they lose interest you should be safe. Once you get back to the elevator the trophy should pop.
If you would like a video Guide then please use PowerPyx's: