Destiny 2 PsiOps Battleground: Cosmodrome Grandmaster Guide

Entering the Grandmaster Nightfall rotation for the first time ever this season, PsiOps Battleground Cosmodrome will prove to be tough for many fireteams. With high enemy density throughout and unforgivingly tight encounter spaces, there’s no question whether this GM will meet the difficulty standard set by others.

Today, we’ll cover exactly how to get through this new grandmaster. From covering the best loadouts to explaining strategies for each section, this guide covers it all. Read on.

Updated as of Season of the Wish (S23).

 Cosmodrome Battleground GM: Loadouts & Subclasses

Every successful clear of any difficult Destiny 2 activity begins with conversations not about strategy but about loadouts. Let’s take a look at what each member of your fireteam should be running here.

Subclasses and Exotics

For the most part, our recommendations here align with what we’ve mentioned in other Grandmaster Nightfall guides for this season. For Warlocks, the best choice is easily the support-heavy combination of Well of Radiance and Cenotaph Mask. If you have more than one Warlock, have the second run their preferred build; anything from a Dawn Chorus ignition build to a Void debuff build with Collective Obligation should work fine.

On Hunter, your best bet here is an Omnioculus Void Invisibility build. While its playstyle is slow and passive, having a panic button with infinite uses is hard to argue against. However, if you are confident in your fireteam’s abilities, running other meta builds with exotics like Shards of Galanor is great as well.

Titans sadly have it worst here; we recommend going for a Strand Banner of War build over anything else, but a strong Sentinel setup can also prove useful if you’re more comfortable with it.

Armor	Class	Type	Requirements	Source	Released	Requires	Exotic Perk
Cenotaph Mask	Warlock	Helm	Lightfall	Lost Sectors	Season 21	Lightfall	Steadily reloads a portion of your equipped Trace Rifles's magazine from reserves. Damaging a vehicle, boss, or champion with a trace rifle marks them as the target. When an ally defeats the marked target, generate special ammo for yourself and heavy ammo for your allies.
Omnioculus	Hunter	Chest	Beyond Light	Lost Sectors	Season 13	Beyond Light	You gain a second Smoke Bomb charge and have damage resistance while invisible. When you make an ally invisible, they gain damage resistance while invisible and you gain melee energy.
Synthoceps	Titan	Arms	Free-to-Play	Exotic Engrams	Season 1	Free-to-Play	Increased melee lunge range. Improved melee and Super damage when you're surrounded.

Loadout

PsiOps Battleground Cosmodrome features unstoppable and barrier champions, both of which have a multitude of effective counters this season. Wish-Ender and Leviathan’s Breath are probably the first Exotics to come to mind for many; however, Polaris Lance is also extremely powerful this season and can deal with both types of champions with the proper setup (Kindling Trigger and Ember of Ashes, with the optional Flint Striker).

As is typical for this season, rocket launchers are the best choice for the heavy slot. Plus, ammo should never become an issue with a Cenotaph Mask Warlock.

Art	Name	Type	Archetype	Rarity	Ammo?	Element?	Requirements	In loot pool?	Ammo	Element	Tier	Excels	Source	Craftable?	Requires	Released	Slot	Can be Crafted?	Best of?	Top Perk?
	Leviathan's Breath	Combat Bow	Exotic	Exotic	Heavy	Void	Shadowkeep Pack	Yes	Heavy	Void	A › Strong	PvE	Exotic Kiosk	No	Shadowkeep Pack	Season 8	Heavy	No	Top-tier
	Polaris Lance	Scout Rifle	Exotic	Exotic	Primary	Solar	Free-to-Play	Yes	Primary	Solar	A › Strong	PvE	Exotic Kiosk	No	Free-to-Play	Season 3	Energy	No	Top-tier
	Wish-Ender	Combat Bow	Exotic	Exotic	Primary	Kinetic	Forsaken Pack	Yes	Primary	Kinetic	S › Best	PvE	Exotic Quest	No	Forsaken Pack	Season 4	Kinetic	No	Top-tier

GM Power Level Requirements

If you’re interested in running a GM, you need to have a proper Power Level (including your Artifact’s bonus Power):

For the record, Power Level requirements were drastically reduced this season to allow more players to experience Grandmaster Nightfalls.

Cosmodrome Battleground GM rotation

PsiOps Battleground Cosmodrome GM Guide

Escort the Payload

Cosmodrome Battleground GM, Destiny 2

The nightfall begins by requiring Guardians to escort a payload throughout The Divide. Here, our advice proves extremely simple: take your time. There is nothing in this section that requires you to be standing near the payload the entire time; instead, use the varied range and cover options the space provides to your advantage.

The payload will halt and require you to kill extra enemies throughout its route. The final of these pauses (occurring at around 82 Payload Progress) will spawn a large wave of Hive enemies including shriekers, unstoppable ogres, barrier knights, cursed thrall, and a lightbearer wizard. Once again, we highly recommend using cover and range to your advantage. While not the quickest, retreating to the buildings behind you and slowly working through enemies is the easiest way to get through this section.

Collect Captured Light

PsiOps Battleground Cosmodrome GM, Destiny 2

The next section is simple in theory: just kill enemies until they stop spawning. Easy, right? Well, not entirely—the room in which this encounter takes place is extremely small, and ads spawn all throughout it.

Luckily, there’s an easy solution. The door you enter from never actually closes or locks, meaning you can use it as a point of cover and safety as needed. Regardless, remember to use Super abilities and heavy ammo liberally throughout the section. Additionally, know that there is no rush to pick up the Captured Light; it shouldn’t despawn, and you can wait until all enemies are dead to enter the room and deposit all three.

Defeat Uul’nath, Lightcleanser

Cosmodrome Battleground GM, Destiny 2

Just like the previous playspace, Uul’nath’s boss room is extremely limited in cover and safe spaces. However, we have yet another trick you can use to make the encounter slightly easier.

After beginning the encounter, retreat up to the platform you spawned in on. While it lacks walls and therefore looks unsafe at face value, you’re far enough away from most enemies that they won’t even bother shooting you. From here, you can damage the boss until he goes immune and teleports away, at which point Aspects of Savathun will spawn.

In this intermission phase, you’ll need to grab the Synaptic Spear to damage Savathun while avoiding her attacks (almost all of which can kill you in one hit). During this phase specifically, we find it easier to find cover on the main encounter island to kill the aspects. Once they’re dead, return to the spawn area and continue damaging Uul’nath. Repeat this process until he dies—just remember to secure the kill by finishing the ghost!

Before you go

If you’re interested in tackling the Conqueror title and clearing all GMs this season, we have a guide for Moon Battleground GM here.