header-image

Arc Raiders Flashpoint: How to Get Assessor Matrix FAST to Complete High-Gain Antenna Project Before It's Gone?

By Leon Green | Last ModifiedApr 10, 2026

Flashpoint update for Arc Raiders introduces many new weapons, items, projects, and events. One new project, High-Gain Antenna project, is not only a limited-time event but also a core challenge in the late game. Completing this project yields generous rewards, such as weapons, attachments, and Raider Tokens.

This project has three phases, each requiring specific items. The second and third phases require Assessor Matrix, totaling 24. Assessor Matrix is the most difficult material to obtain and is crucial to completing this project.

Therefore, this guide is designed for players eager to complete this project before the event ends and claim the rewards.Arc Raiders Flashpoint: How to Get Assessor Matrix FAST to Complete High-Gain Antenna Project Before It's Gone?

Assessor Matrix

Assessor Matrix is an extremely rare epic crafting material in Arc Raiders. Each piece weighs 0.5 kg and sells for a whopping 5,000 Coins in-game. It is not a weapon or item that can be directly equipped but is a key resource for advancing the core late-game progression.

You'll need to use it to advance High-Gain Antenna project-completing it will permanently upgrade your crafting table, unlocking more advanced equipment crafting capabilities. In addition, Assessor Matrix can be dismantled to produce Advanced ARC Powercells and Advanced Mechanical Components, both essential materials for crafting high-level items.

Therefore, whether for completing time-limited projects or accumulating rare materials, Assessor Matrix is a crucial objective you must strive for in the late game.

High-Gain Antenna Project

High-Gain Antenna project is initiated by two NPCs in Speranza-Celeste and Shani-with the goal of building a powerful, high-gain antenna on the surface. This antenna will not only continuously track the increasing aerial ARC threat but will also collect valuable field data for future Riven Tides expansions.

The project is divided into three phases: Phase 1 is Sturdy Base, Phase 2 is Data Logger, and Phase 3 is Parabolic Dish. The progress in the second and third phases relies heavily on a rare material called Assessor Matrix.

This Assessor Matrix only appears under specific map conditions-Close Scrutiny. You must actively enter this high-risk mode to have a chance to obtain it from ARC Assessors.

Close Scrutiny

Close Scrutiny is also one of the main features of this Flashpoint update. This mode will appear in rotation in Dam Battlegrounds, Space Port, Buried City, and Blue Gate. It lasts approximately 60 minutes, and its core mechanic is high risk, high reward.

Under Close Scrutiny map conditions, three ARC Assessors will appear. They are the core of Close Scrutiny operation, and players need to raid Assessors and loot them. This is because after they land, the resources on the map will decrease and accumulate on Assessors.

Assessors become the top source of loot, and Assessor Matrix is hidden among these loot. If you want Assessor Matrix, you must take the risk.

Attacking Assessor

After landing, Assessors will fire three conspicuous red beams into the sky, their locations easily visible on the minimap. Each Assessor carries a hackable container. Approach one and wait for the platform to unfold, then hold down the hack button to open the container. Loot the container to obtain Assessor Matrix, and possibly other rare Blueprints or items.

However, many threats lurk around Assessors. Vaporizers, another new ARC enemy added in Flashpoint update for Arc Raiders, are flying ARCs that typically appear in groups. Besides Vaporizers and other ARC enemies, be wary of other players posing a threat.

Essential Equipment

To counter Vaporizers and other ARCs, prioritize Arc Raiders Items that effectively penetrate armor and counter aerial units, along with targeted weapons.

The recommended primary weapon is Dolabra energy shotgun. Its electric shock effectively disables flying units like Vaporizers, making it an excellent choice for armor penetration and crowd control.

For the secondary weapon, Canto submachine gun, which uses medium-caliber ammunition, is highly recommended. It can quickly eliminate smaller ARC enemies and is also useful for dealing with potential player-versus-player combat.

Tactically, it is strongly advised to carry both a smoke grenade and a photoelectric cloak. The former creates a visual barrier when dismantling evaluator containers, significantly reducing the risk of being targeted by ARCs; the latter is used for a quick escape from danger after a successful attack, avoiding pursuit.

Additionally, consider carrying a Surge Coil. It creates an electric field on the ground, an effective countermeasure against Shredder ground assaults.

Combat Strategy

During Operation Close Scrutiny, several key points need to be grasped when engaging Assessor.

First, when Assessor's health drops to about a quarter, it's often the golden window for other player squads to launch a surprise attack-at this time, a teammate should occupy a high vantage point or outer perimeter to continuously monitor and mark approaching enemies.

Second, a large number of ARC units will gather around Assessor, including Wasps, Hornets, and the highly threatening Vaporizers; prioritize clearing them out before attempting to destroy the container, especially these flying units that fire high-damage lasers.

Finally, when facing Vaporizer fire, avoid exposing yourself in open areas. Instead, make good use of rooftops, beams, and other vertical structures as cover, avoiding attacks while looking for opportunities to counterattack.

Note that Close Scrutiny event has a limited duration and only activates on the same map; it won't change locations midway. After destroying the container, be sure to loot the supplies immediately and put them in your safe pocket, otherwise the container will fly away when the timer expires.

With this detailed guide, go collect Assessor Matrix and complete High-Gain Antenna project to win your rewards. Remember, High-Gain Antenna project is a limited-time event, so don't miss out!

Eldenringitems logo
Close menu