So far from going back to the story missions in the previous Destiny the answer is no. Seems like the TTK is the only storyline that has scannable objects for Ghost Link. Bungie won't bother confirming this.
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Yeah i saw on the Dantalion Exodus IV (or was it VI? Whatever) one of those circular engines/generators was scannable, and so was some chemcal container near the scannable engine (these scannables are in a mission i dont remember which one)