Bungie have included all manner of hidden things to do across Destiny 2, and one just so happens to be in the new Social Space. Once you reach The Farm and explore, you’re sure to discover the fireplace near the river that says it requires Sentry 4. This is a special event that takes you all around The Farm on a Scouting Patrol.
Destiny 2: The Farm Easter Egg, Sentry x4.
