Destiny 2's The Final Shape introduces our first heavy trace rifle to the Microcosm, but unlocking the new Exotic takes time and teamwork. The final quest step before unlocking the weapon is Convalescence: Budding, and you don't want to go it alone.

Here's how to complete the Convalescence: Budding quest in Destiny 2 and unlock Microcosm.

Convalescence: Budding is the final mission in the Microcosm Exotic line and requires you to complete three campaign missions in Cooperative Focus mode. You can start these missions from the Pale Heart Destinations tab at the bottom of the screen under Transgression.

These missions are listed as being set at a Light level of 2,005, but I found the enemies in the mission to be about the same as the enemies in the Legendary campaign. Unlike previous Convalescence quests like Greenery and Rootbound, you can't solo this one.