There is a ship suddenly coming in, it looks like a Hive Ship. A few Hive such as Thralls, Acolytes, and Knights. Then, Savathun, The Witch Queen, Hive Goddess… drops out her ship and commands her Hive to take out a Fallen outpost. They eventually kill all the Fallen ads and set up.

Savathun: “Knights! Prepare for the Guardians! Seems we got their attention and they’re sending in four!”

A Hive Knight nods and prepares defenses.