Here's how Bungie framed Story Strikes for Curse of Osiris: (Destiny)

by cheapLEY , Friday, January 05, 2018, 20:40 (2354 days ago) @ Pyromancy

Deej: And uh, am I going to feel like I’ve been deprived of 2 additional story missions?

That's sort of how I feel, honestly. I'm trying to recall how the story actually goes. We get a mission on the EDZ in a new area, one on Nessus, the Pyrmidion strike, a foray into the Infinite Forest which culminates in nothing and then we get to run back out, the two missions that are strikes, and then the final encounter.

The mission on the EDZ is the only mission that's actually unique content, given that the two middle missions are reused as strikes, and the rest are just randomly running through the Infinite Forest. Even the Adventures just reuse the Infinite Forest, although at leas their final encounters are mostly fun and interesting.