Immaru hacks into the holoprojector in the H.E.L.M. to deliver something interesting: an excerpt of a prediction from Savathûn.
"The Witness will force the Vanguard's hand eventually," Savathûn says in the recording, "and they'll realize they need information only I possess. One of them will be open to a bargain… not Mara again, poor dear. More likely Ikora, or her gloomy little hanger-on, Eris. Give them any help they ask for—it'll all be worth it in the end."
Immaru stops the audio. "You get all that, Guardian?" he sneers. "Go ahead, bust up the Throne World. Get as strong as you like, tithe to Eris until she's fat as a tick. It's all part of Savathûn's plan."
"You need any help digging your own grave, just let me know," he says, and cuts the feed.