All you need to do is complete all of the story missions in Curse of Osiris, then finish all of the Adventures on Mercury, and finally complete a Heroic Adventure for Brother Vance. To acquire the Infinite Forge weapons in Destiny 2, players will first need to unlock access to them. One of the marquee gear sets that Bungie has been touting since before the DLC’s launch is the Infinite Forge weapons. Destiny 2’s Curse of Osiris is here and with it comes a lot of new gear to collect or earn.