Beginning in Year 4 of Destiny 2, older destination and activity content will be cycled out of the the game and into the DCV to make room for new experiences for players. The DCV will contain all destinations and activities from both Destiny 1 and Destiny 2, with the potential for vaulted content to return to the game in the future. In addition, during Year 3 of Destiny 2, seasonal content was removed from the game as each season ended. Guides and infographics for vaulted and removed content will be stored on this page for posterity and for easy reference in the off-chance that any of them return to the game in the future.
While all of these weapons have been made obsolescent by Forsaken's rework of weapon perks, completing a few of these will unlock the Legends Lost questline, and completing all will reward Sagira's Ghost Shell. Neither reward set is worth chasing for power level, but are potentially worthwhile for lore fans.
NOTE: Lowlidev's Interactive Maps are very useful for locating and tracking completion of the override frequency "music boxes" and the warmind fragment collectibles on Mars.
Sleeper Simulant- Exotic Linear Fusion Rifle. Sleeper is unlocked via a post-campaign questline given by Ana Bray. The catalyst is awarded as a random drop in the prestige difficulty of the raid "Spire of Stars."
Worldline Zero - Exotic Sword. Collecting only 35 of the Warmind elemental data fragments on Mars is necessary to unlock Worldline Zero. Collecting all 45 fragments rewards the exotic sparrow G-335 Anseris Overdrive and an emblem.