ARC

ARC is the most common enemy Raiders face when Topside. They are deadly machines that rain from the sky to ravage the surface of the Rust Belt.

They range from small, unassuming forms like roaming Surveyors and feisty Ticks to towering, multi-legged behemoths that dominate the landscape. Each ARC variant has its own strengths, weaknesses, and attack patterns, requiring different strategies to defeat.

Behavior

Every ARC machine has three "modes" that dictate its intentions. Raiders can easily identify which active mode a machine is in by understanding the differences between the colors of light emitted by its scanner: blue, yellow, and red.

• Blue: Indicates the machine is in an unelevated patrol mode passively searching for Raider targets or activity. It continues its patrol of an area until it finds a disturbance.

• Yellow: Indicates it's in an alerted state after witnessing possible Raider activity. In this state, ARC will investigate the location of the disturbance and then lower its alert level if no Raider activity is found.

• Red: Indicates the ARC machine has found a target and entered combat mode. ARC in this state will attack until it loses its target.

Note: If attacked when on patrol, ARC can bypass their elevated state and immediately enter combat mode if an investigation isn't required to find a target. The color of the scanner will shift between red and yellow as Raiders enter and exit scanner range.

Variants

ARC	Notable Drops	XP Gained	Tips
Snitch	ARC Thermo Lining ARC Synthetic Resin Sensors Snitch Scanner	Destroy: 100 Loot: 200	Easily destabilized with destroyed thrusters. Loudly alerts nearby ARC to Raider presence.
Wasp	ARC Alloy Light Ammo Simple Gun Parts Wasp Driver	Destroy: 100 Loot: 200	Easily destabilized with destroyed thrusters.
Hornet	ARC Performance Steel Hornet Driver Medium Ammo Simple Gun Parts	Destroy: 150 Loot: 250	Unarmored rear thrusters. Easily destabilized with destroyed thrusters.
Tick	ARC Flex Rubber ARC Thermo Lining Tick Pod	Destroy: 50 Loot: 100	Often heard before seen. Easily destroyed with any weapon.
Pop	ARC Coolant ARC Thermo Lining Crude Explosives Pop Trigger	Destroy: 50 Loot: 100	Climb to avoid if ambushed. Easily destroyed with any weapon.
Fireball	ARC Coolant ARC Thermo Lining Crude Explosives Fireball Burner	Destroy: 100 Loot: 100	Climb to avoid if ambushed. Weak point is exposed when it opens to attack. Dodge Roll away after destroying it to avoid fire.
Turret	ARC Synthetic Resin ARC Thermo Lining Light Ammo Simple Gun Parts	Destroy: 100 Loot: 200	Bait its attack and hide behind cover.
Sentinel	ARC Alloy Advanced ARC Powercell Sentinel Firing Core Heavy Ammo	Destroy: 200 Loot: 300	Bait its attack and hide behind cover. Explosives recommended.
Surveyor	ARC Alloy ARC Powercell Surveyor Vault	Destroy: 200 Loot: 300 for core + 100 per part	Weak point is exposed when shooting laser. Flees at high speed. Stun using Hornet Drivers, Showstoppers, etc. Explosives recommended.
Shredder	ARC Alloy ARC Powercell Mechanical Components Shredder Gyro	Destroy: 200 Loot: 250	Weak point is thrusters. Never engage without adequate cover. Hide behind cover when it signals its attack. Heavy Ammo or Grenades recommended.
Spotter	ARC Alloy Spotter Relay Sensors ARC Powercell	Destroy: 100 Loot: 200	Quickly destroy them before target lock. Find vertical cover to avoid Bombardier attacks.
Bombardier	ARC Alloy Advanced ARC Powercell Bombardier Cell Launcher Ammo	Destroy: 500 Loot: 300 per part	Weak points are leg joints and rear. Destroy Spotter companions for easier fight. Avoid close-range shockwave attack. Helpless when stunned using Hornet Drivers, Showstoppers, etc.
Bastion	ARC Alloy Advanced ARC Powercell Bastion Cell Medium Ammo	Destroy: 500 Loot: 250 per part	Weak points are leg joints and rear. Slow, but can turn quickly. Helpless when stunned using Hornet Drivers, Showstoppers, etc.
Leaper	ARC Alloy Advanced ARC Powercell Mechanical Components Leaper Pulse Unit	Destroy: 500 Loot: 600 for core + 500 per part	Weak points are leg joints and eye. Explosives make quick work of destroying it. Helpless when stunned using Hornet Drivers, Showstoppers, etc.
Rocketeer	ARC Alloy Advanced ARC Powercell Rocketeer Driver Heavy Ammo	Destroy: 500 Loot: 500 per part	Weak points are thrusters and above scanner. Helpless when stunned using Hornet Drivers, Showstoppers, etc.
Queen	ARC Alloy Advanced ARC Powercell Advanced Mechanical Components Advanced Electrical Components Queen Reactor	Destroy: 1000 Loot: 1000 for core + 500 per part
Matriarch	Magnetic Accelerator Matriarch Reactor	Destroy: 1000 Loot: 1000 for core + 500 per part

Husks and Probes

Husks — the remnants of old ARC machines from past battles — are scattered all over Topside just waiting to be looted.

Over the duration of your time Topside, ARC Probes will land to collect data and then leave when they're finished. They can be breached using the Raider Tool and looted, but beware — they will signal to nearby ARC for help. Occasionally, damaged Probes can be found knocked over and unable to launch again.

ARC	Image	Drops	XP
Wasp Husk		ARC Alloy Wasp Driver Light Ammo	400
ARC Probe		ARC Alloy ARC Circuitry ARC Motion Core ARC Powercell	700
ARC Courier		Burned ARC Circuitry ARC Circuitry Hornet Driver Damaged Hornet Driver Surveyor Vault Sentinel Firing Core ARC Powercell ARC Motion Core ARC Alloy	700
Rocketeer Husk		ARC Alloy Rocketeer Driver Heavy Ammo Damaged Rocketeer Driver	700
Baron Husk		ARC Flex Rubber Impure ARC Coolant ARC Performance Steel Dried-Out ARC Resin ARC Coolant	500
Deforester Husk		ARC Powercell ARC Alloy ARC Flex Rubber ARC Coolant ARC Synthetic Resin Advanced Mechanical Components Damaged ARC components	500

ARC Plating

ARC have different types of plating that can tell you at a glance how armored an ARC is or where their weak-points are. A general rule of thumb for dealing with ARC is that weapons with higher ARC Armor Penetration will be more effective.

• Unarmored Plating is distinguished by its matte, white coloring. All weapons are semi-effective against Unarmored Plating although rounds with Moderate ARC Armor Penetration or above will be the most effective.
• Armored Plating is distinguished by its shiny, dark gray coloring. Rounds with or above Moderate ARC Armor Penetration are needed to damage Armored Plating as anything below Moderate will bounce off. Damaging Armored Plating can strip it off, revealing weaker plating.
• Weak-Points are distinguished by their matte, bright yellow coloring. Damaging Weak-Points deals direct damage to ARC and should be the priority when attacking.