The phrase "raid content" refers to a challenging and collaborative activity in video games, where a group of players join forces to defeat powerful enemies or complete difficult quests together. Full definition
There's also new missions, new strikes, new raid content, new free - roam activities and a world quest to complete. (alphr.com)
The goal of the new Prestige mode is simple: provide new ways to engage with raid content each week, new ways to engage with different weapons in your vault, and new rewards to chase. (dulfy.net)
For Destiny 2, we wanted to release raid content on a more regular cadence than we did during the first years of Destiny. (dulfy.net)