How To Complete The Wellspring Activity In Destiny 2: The Witch Queen

gamespot.com:

The Scorn are still a threat to Guardians in Destiny 2: The Witch Queen in the new six-player matchmade activity, Wellspring. In Savathun's queendom, the Scorn are after a source of Light inside a location called the Wellspring, and Guardians need to protect it. This leads the Lucent Hive to strengthen its defenses to protect the Wellspring, but Guardians need to maintain control against both enemies.

The Wellspring is actually home to two activities: Defend and Attack, which rotate daily. You'll find them in the Court of Thorns area of Savathun’s Throne World with a recommended Power level of 1510. You can access it after completing The Witch Queen campaign and additional objectives.

An Exotic quest, called Of Queens and Worms, will direct you to speak to Mara Sov at the Enclave. After meeting with Mara, play through the Birthplace of the Vile strike and visit Fynch. Fynch will give you The Spring of Power quest to complete the Wellspring activity--Of Queens and Worms branches into another quest at this point.

There are four bosses: two Scorn Lightflayers for Defend and two Hive Wardens for Attack.

The activity cycles through four Legendary weapons daily: Tarnation grenade launcher, Fel Taradiddle bow, Father’s Sins sniper rifle, and Come to Pass auto rifle. You have a chance of getting any of these weapons from the chest at the end of the activity.

Also, you should hold onto Wellspring weapons with Deepsight Resonance. Extracting the resources from these weapons also gives you the weapon Patterns for crafting. Keep in mind that you need to get more than one Pattern for Wellspring weapons. Players working on the Report: Relic-Data quest--a quest that leads to the Exotic Glaive--from the Evidence Board need to craft