PS: Here is the copy of the Mission outline that is stated in the walkthrough guide. I hope/pray it jogs someone's mind. Thank you.
Protect the Akshat II
There is a Cruiser in the Gaungbwa system that is under attack by the Oc'to.
You need to fly to Gaungbwe and protect the Arrack cruiser Akshat II for as
long as you can.
This is your basic mission. Fly to the system, stay near the friendly
crusier and destroy all enemy fighters. After that, intercept the enemy bomber
fleet that is inbound hot on the cruiser. Then, the Cruiser will turn up
and attack up. Destroy it.
Reward: Key to the Honnaing system
Problem is, all the info I try to find about this quest is ful of crap that wont tell me how to get this quest started. Even the so called Walkthrough Guides don't tell you. Why do walthrough's only tell you what happens and not how to begin what to do. In my case it tells me the strategy, but not the beginning to start the quest. It would be great if someone could make a fully complete walkthrough on the missions and side missions of Darkstar One that has all information in it and just not what to do in the quest but also where you collect it etc.
But can someone please tell me what I have to do to get this quest, so that I can finally collect the Key to the Honnaing system. Thanks.
Also I have tried many forums for over 2 months and got no reply so I hope I can get a quick reply to my question here. Thanks guys. :)

You have undoubtedly figured this out all ready.
For some reason I could not start new topics or do replies on this forum till now.
But just for the record I found this side mission at:
Arrack Cluster, Hive-AC3 at the Tinmaung trade station. For what it is worth. I did not see this on the Steam forum which I usually visit.

Thank you very much for the record! :)