Destiny 2

Completed the story and plenty more yet cant seem to find where to start the Eris memory for the Teir one drop. Finished the original quest for the Rocket Launcher but cant see how to replay the mission.
Any suggestions?

10 a day, may be more, may be less,dds dv aa Any suggestions? replay the mission.

I'm starting to play it and I don't know, I have the feeling that I don't know where I have to go, I don't know if any of the same thing happened to him