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Halo Infinite guide: Upgrades and Spartan Cores

Mjolnir Suit Upgrades with Spartan Cores for the Grappleshot, Shield Core, Threat Sensor, Drop Wall, and Thruster

By Jeffrey Parkin and Dave Tach
Halo Infinite Mjolnir Suit Upgrade Grappleshot Image: 343 Industries/Xbox Game Studio via Polygon
Part of Halo Infinite guides

Halo Infinite has five upgrades to Master Chief’s Spartan Armor: the Grappleshot, Shield Core, Threat Sensor, Drop Wall, and Thruster. You’ll pick them up pretty quickly over the first few main story missions, and each then has four additional levels of upgrades, which you purchase with Spartan Cores.

In this Halo Infinite upgrades guide, we’ll explain what each piece of gear and upgrades are, how you upgrade them, and which to upgrade first.

Halo Infinite Upgrades

Over the course of the first couple main story missions, Master Chief will pick up five different pieces of equipment for his Spartan Armor. In order, they are the Grappleshot, Shield Core, Threat Sensor, Drop Wall, and Thruster.

Upgrades and Spartan Cores – Halo Infinite guide
The upgrade menu.
Image: 343 Industries/Microsoft Game Studios via Polygon

Grappleshot upgrades

Upgrade Spartan Cores Description
Upgrade Spartan Cores Description
Voltaic 1 Grappleshot stuns grappled enemles tor several seconds.
Quickshot 2 Reduces Grappleshot cooldown by 40%.
First Strike 3 Delivers a powertul shockwave blast when holding melee while grappling.
Reachfall 3 Increases damage and radius or the shockwave blast. Enemies within It will be stunned.

Shield Core upgrades

Upgrade Spartan Cores Description
Upgrade Spartan Cores Description
Fortress 1 Increases shield capacity by an additional 15% of base shield strength.
Bastille 2 Increases shield capacity by an additional 15% of base shield strength.
Redoubt 3 Increases shield capacity by an additional 15% of base shield strength.
Citadel 3 Increases shield capacity by an additional 15% of base shield strength.

Threat Sensor upgrades

Upgrade Spartan Cores Description
Upgrade Spartan Cores Description
Threat Sensor 1 A scout projectile that tracks enemies through walls and terrain
Seeker 1 Increases Threat Sensor detection radius by 50%.
Operative 2 Adds a second charge to the Threat Sensor.
Clairvoyant 3 Reduces Threat Sensor cooldown by 40%.
Omniscience 3 Adds uninterrupted enemy visibility to the Threat Sensor and reveals their health.

Drop Wall upgrades

Upgrade Spartan Cores Description
Upgrade Spartan Cores Description
Drop Wall 1 A single-sided deployable shield providing instant cover from enemy fire.
Swift Shelter 1 Reduces Drop Wall cooldown by 20%.
Rampart 2 Increases Drop Wall strength by 35%.
Blockade 3 Increases Drop Wall strength by 70% and increases wall size.
Direct Current 3 Adds shock damage to any projectiles fired through the Drop Wall.

Thruster upgrades

Upgrade Spartan Cores Description
Upgrade Spartan Cores Description
Thruster 1 A module that activates short bursts of directional movement to evade attacks.
Afterburner 1 Adds a second charge to your Thruster.
Impulse 2 Adds significant power to the Thruster, allowing further and faster travel.
Escape Velocity 3 Adds a personal cloak effect to Thruster, lasting 4 seconds after activation.
Thermal Control 3 Reduces Thruster cooldown by 20%.

Halo Infinite Spartan Cores

You’ll find Spartan Cores scattered around the map — they’re kind of everywhere. Conveniently, they’re automatically marked with a triangular icon and populated onto your map as you liberate FOBs.

A box where you can “PICK UP SPARTAN CORE” in Halo Infinite Image: 343 Industries/Xbox Game Studios via Polygon
A Halo Infinite screenshot describing a Spartan Core, which reads “You’ve acquired a Spartan Core. These valuable Miolnir components are used to upgrade Equipment. Access Upgrades in the Campaign Menu to install cores.” Image: 343 Industries/Xbox Game Studio via Polygon

From your map, set a Spartan Core as your waypoint and make your way there. They’ll look like a crate with a holographic UNSC logo floating on top.

Best upgrades to unlock first

Without question, put all of your first Spartan Cores into your Grappleshot and Shield Core. Spread them between the two, but focus on these two first.

The Shield Core is an obvious choice. Strengthening your rechargeable shield will only make surviving the Banished easier.

The Grappleshot is less obvious, but is easily our favorite addition to Halo Infinite. You’ll use it to traverse Zeta Halo quickly, stun enemies, retrieve weapons, and commandeer vehicles.