The R-36 Eruptor is a bolt-action explosive rifle in Helldivers 2 that functions more like a portable cannon than a traditional primary weapon. It is unlocked on the second page of the Democratic Detonation Premium Warbond.
Key Features & Stats
Ammunition: Fires jet-assisted shells that explode on impact, releasing shrapnel.
Armor Penetration: It is one of the rare primary weapons with heavy armor penetration, capable of damaging most enemy types.
Maximum Range: Rounds automatically air-burst after traveling approximately 180 meters.
Utility: Can destroy Bug Holes, Automaton Fabricators (by hitting vents), and Illegal Broadcast Towers.
Performance vs. Factions
Terminids: Effective for clearing groups of small bugs and medium targets like Hive Guards and Spewers. It can even bleed out Bile Titans by shooting their unarmored undersides.
Automatons: Excellent for sniping Devastators and can destroy Gunships in two hits to the engines. It can two-shot a Hulk's visor with precision.
Illuminate: Highly effective against flesh mobs and can one-shot many shielded units.
Combat Tips & Loadouts
Mind the Distance: The explosive radius is large; firing at enemies closer than 7-10 meters will likely kill you.
Pairing: Because of its slow fire rate, it is best paired with a high-rate-of-fire secondary like the P-19 Redeemer or a support weapon like the Stalwart or Machine Gun to handle close-range "chaff".
Ergonomics: Use armor with the Peak Physique perk to improve the weapon's slow handling and aim speed.
Reload Trick: You can technically skip part of the bolt-action animation by quickly switching weapons after a shot, though this requires precise timing.
Building around the R-36 Eruptor requires balancing its massive explosive power and utility (like closing bug holes/fabricators) against its slow fire rate and poor close-quarters performance.
1. The "Crowd Clear" Build (Best for Bugs/Illuminate)
This setup uses the Eruptor as a "secondary" utility weapon while relying on a high-RPM support weapon for self-defense.
Support Weapon: MG-43 Machine Gun or M-105 Stalwart (use the Stalwart for mobility or the MG for medium armor).
Secondary: GP-31 Grenade Pistol or P-19 Redeemer to bail out of close-range ambushes.
Backpack: AX/AR-23 Guard Dog Rover to thin out chaff enemies that get too close.
Armor: Any with the Peak Physique passive (improves weapon handling/ergonomics) or Fortified (reduces explosive self-damage and recoil).
2. The "Anti-Armor Sniper" Build (Best for Bots)
Focuses on long-range precision and taking down medium-to-heavy targets from safety.
Support Weapon: LAS-98 Laser Cannon or GR-8 Recoilless Rifle for infinite-range utility against Gunships and Hulks.
Secondary: P-4 Senator for reliable, punchy backup.
Grenade: G-23 Stun Grenade to freeze Heavies in place for an easy Eruptor eye-shot.
Stratagems: Eagle Airstrike and Orbital Precision Strike for clearing outposts and tanks.
3. Key Weapon Attachments
If you have access to weapon customization, prioritize these to offset the Eruptor's sluggish feel:
Optics: Stick to the high-magnification scopes to leverage its long-range accuracy.
Pro Tips
Distance is Safety: Never fire at an enemy within 5–10 meters; the explosive shrapnel can and will kill you.
Utility King: Use the Eruptor to destroy Bug Holes and Automaton Fabricators from a distance, saving your grenades for combat.
Reload Trick: You can cancel the bolt-action animation by quickly swapping to your secondary and back, though recent patches have adjusted the timing.
Helldivers 2 Eruptor Vs Crossbow
In Helldivers 2, choosing between the R-36 Eruptor and the CB-9 Explosive Crossbow depends on whether you value raw, heavy-hitting power at a distance or mobile, versatile utility.
Feature
R-36 Eruptor
CB-9 Explosive Crossbow
Playstyle
Heavy Sniper / Anti-Armor
Mobile Utility / Skirmisher
Damage
~455 + High Shrapnel Potential
~620 (Ballistic + Explosive)
Armor Pen
Heavy (AP4)
Medium (AP3)
Handling
Sluggish (Bolt-action)
Snappy (One-handed)
Engagement
Long Range (Scoped, flat trajectory)
Mid Range (Arcing projectile)
Ammo
5/mag, 6 total mags
5-6/mag, 8-10 spare mags
Take the Eruptor for: Automaton missions where you need to snipe Devastators from a distance or Illuminate missions where shrapnel shreds flesh mobs. Pair it with the Stalwart to handle close-range swarms.
Take the Crossbow for: Bug missions where you need to stay mobile, or when using a Ballistic Shield against bots. It excels as a primary for players who carry objective items (like SSSDs) since it stays usable while carrying.
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