Crazy I'm sitting here 6 years later and seeing a bunch of it in the new Lightfall DLC around Osiris in the Hall of Heroes.
English
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It's on the right side of the "whale room" under Titan, hidden in shadows too. XD
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Also all over a table in the seasonal hub opposite side of the vendor
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I never noticed it until I saw it there as well, right next to where Sloane and Drifter were having a drink at. Sloane said "This stuff is awful" and Drifter was just like It is what it is or something. If it's actually a high octane fuel like someone else said, explains why Drifter might be drinking it. Guardians probably have a high tolerance for alcohol. Drifter tho... That dude probably does shots of rocket fuel just to feel something at this point.