Destiny 2‘s Echoes Act Two brought more developments for the seasonal story, more activities, and more specimen quests, starting with Specimen ID:NES004.
This Specimen quest, like others, hands you a set of objectives around Nessus. In this case, Specimen ID:NES004 is connected with the seasonal activities. This comes in handy with the addition of the new Battlegrounds and two new, coveted weapons. Here are the objectives for Specimen ID:NES004 in Destiny 2 and how to complete them.