Rogue Trader Arbites Build Guide
TL;DR: The strongest Arbites build is a Subductor shield bruiser on a Warrior chassis: stack Weapon Skill, Strength, and Toughness, carry a power weapon and a shield, and hold the front rank. Take the Arbites Origin from the Lex Imperialis DLC, run Warrior at Tier 1, and the Overseer advanced archetype stays open if you want a damage familiar later. Build it on your protagonist rather than relying on Solomorne Anthar, who runs a weaker version of the same kit.
What the Arbites Origin Gives You
The Lex Imperialis DLC adds the entity:arbitrator Origin, a law-enforcement background that turns your protagonist into an Adeptus Arbites operator. Picking it at character creation opens three specialties, and the one you choose sets the whole tone of the build.
Subductor is the riot-control specialty. It leans hard into shield-based melee: a Subductor closes the gap, plants a slab shield in an enemy's face, and grinds the front line down through protection and steady pressure. This is the bruiser path, and it is the one to build.
Castigator is the shotgun specialty. It does something the rest of the game never quite manages on its own: it makes entity:shotgun a genuine top-tier weapon class. A Castigator built around Ballistic Skill turns close-range scatter weapons into reliable damage, which is a niche almost nothing else in the roster fills.
Vigilant is the watchful, control-focused specialty. It is also Solomorne Anthar's specialty, which matters when you compare the player build to the companion later on.
The Arbites Origin does not lock you out of the core archetype tree. It slots cleanly onto a Tier 1 archetype, most naturally entity:warrior or entity:officer, and it is one of the routes into the entity:overseer advanced archetype.
The Overseer Connection
Lex Imperialis introduced the entity:overseer alongside the Arbites Origin, and the two are linked. Overseer is an advanced archetype reachable from entity:officer or entity:operative, and also from the Arbites Origin itself. Its signature is a damage-dealing familiar: a cyber-mastiff that fights alongside you and adds a second source of attacks to the character's turn.
If you want a support-leaning Arbites who commands a beast on the battlefield, Overseer is the payoff archetype. A pure front-rank bruiser does not need it, but the route is why the Arbites Origin reads as flexible rather than narrow. One origin choice keeps both a melee-tank path and a familiar-commander path open.
The Recommended Build: Subductor Shield Bruiser
This is the arbitrator that holds the line and hits back.
Origin: Arbites, Subductor specialty. Tier 1: Warrior. The Warrior chassis gives you the melee proficiencies, the durability scaling, and the action economy a shield bruiser wants. Stats: Weapon Skill first, Strength second, Toughness third. WS lands your power-weapon swings; STR drives melee damage and shield use; Toughness keeps you standing in the front rank where this build wants to be.
Build: 21292a31e5fcWeapons and Gear
Pair a shield with a power weapon. A entity:power-sword is the clean default: it carves through armor, fits the WS-plus-STR stat line, and leaves a hand free for the shield that defines the Subductor. The shield is not an afterthought here. It is the engine. It converts your Toughness investment into staying power and lets you wade into a pack of enemies that would shred a glass-cannon carry.
How It Plays
A Subductor bruiser is a control piece first and a damage dealer second. You push forward, body-block lanes to your backline, and force melee attackers to deal with you before they reach your entity:officer or your sniper. Strength and a power weapon mean that engaging you is never free; enemies that crowd in take real damage in return.
Where this build earns its keep is the front-rank lock. Your carries do the heavy lifting from range, and the Subductor makes sure they get to do it uninterrupted. Combine that with a entity:warrior's durability scaling and you get a character who almost never goes down, which on harder difficulties is worth more than raw numbers.
Why the Player Build Beats the Companion
entity:solomorne arrives with the Lex Imperialis DLC as a recruitable Arbitrator, and on paper he looks like the obvious way to get an Arbites in your party. In practice he is not.
Solomorne runs the entity:overseer archetype with the cyber-mastiff familiar, and the community read on his combat value is lukewarm. A entity:soldier or entity:arch-militant outperforms his Overseer kit on damage, which leaves him in the lower-mid tier despite strong story integration. His specialty is Vigilant, the control-and-watch path, not the Subductor bruiser line that makes the Arbites Origin shine.
Your protagonist does not carry that ceiling. Building the Arbites yourself lets you take Subductor, put it on a entity:warrior chassis, and pour stat points exactly where a shield bruiser needs them. You also decide whether the Overseer familiar is worth the detour instead of having it locked in as your only option. The Arbites Origin is excellent, but it rewards the player who builds it on the main character far more than the one who recruits Solomorne and hopes the familiar carries.
For where this build sits against every other archetype path, see the class and archetype tier list. To compare it directly with the other top builds, head to the best builds hub.
Quick Reference
- Best Arbites build: Subductor shield bruiser on a Warrior chassis.
- Stat priority: Weapon Skill, then Strength, then Toughness.
- Weapon: power sword plus a shield.
- Role: front-rank control and durable melee pressure.
- Optional path: Overseer for a damage familiar, reachable from the Arbites Origin.
- Companion vs. player: build it yourself; Solomorne underperforms on the same Overseer kit.