PsiOps Battleground: Cosmodrome

PsiOps Battleground: Cosmodrome
Information
Location	Cosmodrome
Players	1-3
Power	1350 (mission) 1400 (PsiOps Battlegrounds playlist) 1580 (Legend PsiOps Battlegrounds)
Expansion	Season of the Risen
Enemies	Hive, Fallen
Boss	Uul'nath, Lightcleanser (Lightbearer Knight)
Description	The Lucent Hive are using stolen Guardian Light for some wicked purpose. Breach their stronghold and uncover their plot.

PsiOps Battleground: Cosmodrome is an Arena activity introduced in the Season of the Risen. It was part of the PsiOps Battlegrounds playlist, and could also be launched as a mission from the Cosmodrome map.

With the release of Lightfall, most Year 5 seasonal content was removed from the game and added to the Destiny Content Vault. The PsiOps Battlegrounds missions remained in the game, moving to the Vanguard Ops strike playlist. They cannot be launched as individual missions through the Director, and can only be played when randomly chosen by the playlist.

Modifiers

PsiOps Battlegrounds Playlist

• One of the following:
  • Arc Singe: Arc damage increases slightly from all sources.
  • Solar Singe: Solar damage increases slightly from all sources.
  • Void Singe: Void damage increases slightly from all sources.
• One of the following:
  • Grenadier: Grenade abilities deal more damage and recharge much faster.
  • Brawler: Melee abilities deal more damage and recharge much faster.
  • Heavyweight: Power weapons deal more damage, and more ammo is available.
  • Stasis Singe: Stasis damage increases slightly from all sources.
• Champion Foes: You will face Barrier and Unstoppable Champions.

Legend PsiOps Battlegrounds

• One of the following:
  • Empath: Enhanced radar. Take increased damage from melee.
  • Fire Pit: When defeated, Acolytes spawn fire pools that cause damage over time.
  • Martyr: Exploder units have more health.
• Champion Foes: You will face Barrier and Unstoppable Champions.
• Equipment Locked: You will not be able to change your equipment after this activity starts.
• Match Game: Enemy shields are highly resistant to all unmatched elemental damage.
• Shielded Foes: You will face combatants with Arc, Solar, and Void Shields.

Walkthrough

The Divide

Guardians deploy in The Divide, a Cosmodrome area littered with rusted structures and Fallen scavengers. The objective is to escort a payload of Lucent Remains to breach a Hive nest entrance. Clear waves of Fallen enemies, including Dregs, Vandals, Shanks, and explosive Shanks, which spawn periodically and can halt the payload if not defeated. A Brig miniboss appears mid-escort, requiring heavy weapons due to its high health (noted for surviving high-damage attacks like Celestial Nighthawk Golden Gun crits). Stay near the payload to keep it moving, as straying too far causes it to stop, and infinite Fallen snipers spawn if progress stalls. Barrier or Unstoppable Champions may spawn in playlist or Legend runs, requiring appropriate mods (for example Anti-Barrier Auto Rifle, Anti-Unstoppable Pulse Rifle). Completing the escort unlocks the Hive nest entrance.

The Breach

Inside the Hive nest, players face dense waves of Lucent Hive, including Thrall, Acolytes, Knights, and Wizards, some with Light-based abilities (for example Solar grenades). The objective is to dispel Captured Light by defeating Hive Purifiers (Major enemies) to collect Captured Light orbs. Deposit these orbs at a marked area to progress, with a Heavy Ammo box available to replenish loadouts. Additional Champions may spawn in playlist or Legend runs, complicating the encounter. Clear all Captured Light to unlock the path to the Mindscape, watching for fast-moving Thralls and ranged Wizard attacks that can overwhelm uncoordinated teams.

The Mindscape

The final encounter occurs in the Mindscape, a psionic realm where players confront Uul'nath, Lightcleanser, a Lightbearer Knight. Damage Uul’nath until he reaches two-thirds health, when he becomes invulnerable, retreats, and summons an Aspect of Savathûn (a yellow-bar enemy). Pick up a Synaptic Spear (spawning on central steps, marked by a waypoint) and throw it to destroy the Aspect, resuming the damage phase. At one-third health, Uul’nath summons two Aspects, with spears spawning in the left cave and on right rubble. Destroy both Aspects to continue damaging Uul’nath.

Mechanics

Uul’nath uses a Blade Barrage ability (signaled by red spinning blades above his head), dealing heavy damage. Take cover to avoid it. Waves of Hive adds (Thralls, Acolytes) spawn throughout, requiring crowd control with grenades or heavy weapons. In playlist, Legend, or Grandmaster runs, Barrier and Unstoppable Champions may spawn during damage phases, necessitating equipped mods.

Strategy

Prioritize add control with area-of-effect abilities to maintain space. Use Synaptic Spears quickly to minimize downtime, and save heavy ammo for Uul’nath’s damage phases. High-damage Supers (for example Thundercrash) and Power weapons (for example Linear Fusion Rifles) are effective, but ensure Champion coverage. In Grandmaster, stay near spawn for safety, using long-range weapons like Outbreak Perfected or Wish-Ender.

Completion

Deplete Uul’nath’s health and destroy his Ghost. Two Imperial Optus Psions trap his mind, teleporting players back to the material plane to complete the mission.

Notes

During Season of the Risen, completing PsiOps Battleground: Cosmodrome progressed the Operation Elbrus quest and seasonal challenges, rewarding Psychogenic Intel and Risen Umbral Energy for focusing Umbral Engrams at the War Table. A Runic Chest (requiring 500 Psychogenic Intel) offered additional seasonal gear, but this is unavailable in the Vanguard Ops version. The activity originally required completing the first mission of The Witch Queen campaign and the Rising Tensions quest to unlock the PsiOps Battlegrounds playlist. The Brig miniboss in The Divide has a bugged health pool, surviving high-damage attacks, which has been a persistent issue since launch. A bug preventing Captured Light pickup in The Breach was fixed in Patch 4.0.0.5, though rare progression issues may persist. The activity is part of the Grandmaster Nightfall rotation, noted for its high difficulty due to dense enemies, tight spaces, and numerous Champions. Strategies include using Outbreak Perfected, blinding Grenade Launchers, and Void Hunter or Solar Warlock builds. An exploit allowed players to open chests twice by sprinting to The Divide after looting, triggering a teleport back to the chests, effective in normal and Legend versions during Season of the Risen.

Patch History

• 4.0.0.1
  • Added PsiOps Battleground: Cosmodrome as part of the PsiOps Battlegrounds playlist on February 22, 2022.
• 4.0.0.5
  • Fixed an issue in the Cosmodrome that blocked players from picking up Captured Light, blocking further progression.
• 4.1.0
  • Introduced Legend difficulty for PsiOps Battlegrounds on March 22, 2022, with increased Power Level (1580) and additional modifiers.
• 6.0.0
  • Moved PsiOps Battleground: Cosmodrome to the Vanguard Ops strike playlist with Lightfall on February 28, 2023, removing direct launch and Runic Chest rewards.
• 6.3.0.5
  • Fixed an issue where revives did not award points for scoring in PsiOps Battlegrounds activities.