From all the threads this is the determined requirements for the drop
1.lvl3 queens rank (Bungie help posted this on another thread)
2.complete ALL wolves on Mars quests for Varkis
3.complete all Petra quest line and turn in "lost and found"
I know this works because I did it this morning and got the drop
Keep grinding Gaurdians
English
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if i completed it before get lvl 3 can i have it?
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I never got the Lost and Found quest
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This is how I got mine.