https://www.polygon.com/2018/5/9/17335674/destiny-2-warmind-strike-ps4-exclusive

Destiny 2’s latest expansion, Warmind, includes some new strikes. These cooperative three-player dungeon-esque exercises usually comprise a major chunk of the new content in each Destiny add-on. But they don’t feel very new in Warmind, unless you’re playing on PlayStation 4, where Destiny publisher Activision maintains an exclusive content deal.

On Windows PC and Xbox One, Warmind comes with two strikes: Strange Terrain and Will of the Thousands. But like multiple Destiny expansions before it, Warmind offers an extra strike exclusively to PS4 players, The Insight Terminus. Longtime Destiny players remain frustrated by this situation — even PlayStation customers, who benefit from the exclusive content, often express sympathy for their PC and Xbox brethren — but they’re accustomed to it by now.