DEUS EX: HUMAN REVOLUTION
59 Achievements
1,250
29-35h
Back Stage Pass
You gained access to Quinn's secret store. Details for this achievement will be revealed once unlocked
20
How to unlock the Back Stage Pass achievement in DEUS EX: HUMAN REVOLUTION - Definitive Guide
After the poison gas part of the story, when heading back to the main base, Quinn will contact you and tell you he's left stuff for you in his shop. (This is a secondary objective of the main quest). Head down to his shop to find the door open. Enter, go to the back room and move some boxes to reveal a red button. Press the button to find the secret stash and unlock the achievement.
At this point, I could not remember how to get to Quinn's shop. So if you are having trouble finding the shop, pull out your trusty map with the back button and look at the bottom level of the map. There isn't much on the bottom level but the icon of the tools in the middle of the section to the left of the elevator icon is Quinn's shop. You should be on the floor above this and need to simply make your way to the elevator on the far right of the map for this floor (straight east from where the final confrontation with Burke marked with the X is). You'll have to fight some guards to get to the elevator but once you make your way down, head straight forward and Quinn's shop is on the left with the door open. And as tintmylf mentioned, move the boxes in the back and hit the red button and achievement unlocked.
This Achievement's description: You gained access to Quinn's secret store.
No Augmentation enhancements manually augmented required.
How to do: This is when you have a reason to go to Quinn for the third time - pretty late in this Additional Content's Story's completion progress. Then you can enter the Room, Quinn was inside - the door will be open for you to just enter. Search for a switch, and activate - you can activate interaction element highlighting under Options - you can also activate enhanced Objective tracking, there under Options. This information will help you to understand when this will be, and so you will feel to be confident not to miss chance, nor you will have to worry:
Tracking for - When to do (3rd time):
1st time: Primary Objective (Automatically retrieved during this Additional Content's Story progress - locate Quinn's Store)
2nd time: Secondary Objective retrieved upon Primary Objective (Optional and unnecessary if your focus would be solely to gather Achievements - bring three requested items to Quinn's Store - doing this will not negate possibility to meet any of this Additional Content's related Achievements while on current Story progress)
3rd time: Secondary Objective retrieved upon another Primary Objective (Automatically retrieved during this Additional Content's Story progress - revisit location of Quinn's Store)
If you do head back down to his shop, in the back room you will find a terminal with two crates stacked up on top of one another. Move them, and you will find a switch. Press it, and Quinn's secret stash will be open for your enjoyment.
HOWEVER, if you are going for Factory Zero, you will notice nearly everything is useless to you . Get the energy bars, painkillers, and the hypnostim, then go beat the snot out of Burke.
Questions, corrections and neg vote justifications below.
Missable! This is avaible after clearing the toxic gas incident in the story. After that you'll be contacted by Quinn and he'll basically tell you that he has left his store open for you to prepare yourself against Burke and his team, so head over to Quinn's store below the Rifleman Bank Station on the last level. Enter his store to find he left a safe full of supplies for Jensen to take, but there's a secret store inside of Quinn's store. If you go into the back of the store you'll find two crates that you can move out of your way, so move them aside and reveal a hidden switch. Flip the switch and you'll gained access to Quinn's secret store with a lot of fire power as well as unlocking your trophy. Video credit goes to PragPD.
After you get discovered by Burke and you come across the cutscene with Keitner, just after Burke stops the biometric scan you will be contacted by Quinn. Make your way to his store and go to the back, and pick up the two boxes that are in front of a red switch. Press this switch to reveal the armoury and get the achievement.