if you reading this that's mean you have been searching this quest for hours and with no luck but hey i have the solution
after cleaning 3 location go to your ship check E-mail under title "Something Suspicious" check this like and do this quest
http://www.ign.com/wikis/mass-effect-andromeda/Life_on_the_Frontier
after you talk to her sister go to the ship because when you finish talking to her she tell you go to duck bay and when you go there the quest tell you go to ops and it will be loop so just go to your ship and scan the 3 location after scanning it will tell you go to kadara and go to this location
https://pixhost.org/show/268/39178599_masseffectandromeda-2017-04-13-17-32-57-24.png
https://pixhost.org/show/268/39178606_masseffectandromeda-2017-04-13-17-32-50-31.png
after cleaning this location all of them and scan the building both floors and docking area ,after that go to this location the one you already clear it and scan the box again
https://pixhost.org/show/268/39178749_masseffectandromeda-2017-04-13-17-51-51-21.png
https://pixhost.org/show/268/39178750_masseffectandromeda-2017-04-13-17-52-07-04.png
after scaling go to this location and do the same but forces because you need to read a pad there
https://pixhost.org/show/268/39178666_masseffectandromeda-2017-04-13-17-38-23-51.png
https://pixhost.org/show/268/39178671_masseffectandromeda-2017-04-13-17-38-35-80.png
after cleaning and scanning and reading you will find out that the flying soldier is gone
before
https://pixhost.org/show/268/39178719_screenshotwin32_final_001.jpg
after
https://pixhost.org/show/268/39178673_masseffectandromeda-2017-04-13-17-41-51-13.png
after this go to this location and kill them all and go to both bays and destroy cargo
https://pixhost.org/show/268/39178771_masseffectandromeda-2017-04-13-17-56-35-42.png
https://pixhost.org/show/268/39178774_masseffectandromeda-2017-04-13-17-56-40-89.png
and that's it my friend the quest is over
i hope i helped you because i know you you suffered enough from this !@#$ing quest
take care
