Helldivers 2 – RS-40 Beast of Prey Armor Guide

What Is the RS-40 Beast of Prey?

The Beast of Prey is a Heavy armor set modeled after legendary Helldiver Ronald Mambo—basically the poster child for “huge, strong, and unshakable.” 
It includes:

• Body armor (Heavy)
• Helmet (cosmetic with Standard Issue passive)

The body armor is where the real gameplay value sits, thanks to its stats and passive ability.

Is the RS-40 Beast of Prey Worth Using?

If your goal is raw survivability and melee-focused play, then yes—this armor is extremely strong in the right situations.

Its standout feature is the Rock Solid passive, which:

• Doubles melee damage (+100%)
• Makes you much harder to knock prone

That second part is huge. Staying upright in Helldivers 2 often means living a few seconds longer… which is usually the difference between surviving and exploding.

However, it is heavy armor, so you lose mobility. If you like being fast or repositioning often, this set may feel sluggish.

How Do You Unlock RS-40 Beast of Prey?

You can get both the armor and helmet from Page 1 of the Python Commandos Premium Warbond. 
Costs:

• Body Armor: 55 Medals. You can buy helldivers 2 medals from U4GM.
• Helmet: 45 Medals

The Warbond unlock is straightforward—you just need enough medals, no special mission required.

Mechanics & Stats of RS-40 Beast of Prey

Armor Type: Heavy 
Armor: 150 
Speed: 450 
Stamina: Reduced (heavy armor baseline) 
Passive: Rock Solid

What the stats mean in practice:

• 150 Armor gives strong protection, ideal for sustained fights.
• 450 Speed is slower than medium/light sets—you'll feel the weight.
• Low Stamina Recovery makes sprinting harder.
• Rock Solid gives you: +100% melee damage. Resistance to being knocked prone (knockback resistance).

This combination makes the set perfect for frontline chaos—when bugs or bots start piling up and you need to hold your ground.

Does the Armor Reduce Knockback?

Yes. 
The Rock Solid passive directly increases resistance to being knocked prone. 
This makes a noticeable difference when swarmed by Chargers, Hulks, or explosions.

Can RS-40 Beast of Prey Be Upgraded or Customized?

Not mechanically—armor sets in Helldivers 2 don't upgrade in stats.

But the helmet and body pieces are separate unlocks, so you can mix and match visuals with other armor sets.

Strategy & Best Use Cases

1. High-Difficulty Missions

This armor shines most on difficulty 6+ missions, where you're constantly getting blasted around by:

• Chargers
• Titans
• Rocket Devastators
• Artillery splash
• Exploding bugs

Staying on your feet means you can keep shooting, keep throwing grenades, and keep reviving teammates.

2. Melee-Friendly Loadouts

Because of the +100% melee damage boost, consider pairing it with:

• Melee builds
• Close-range weapons
• Stratagems that require standing still or being tanky (e.g., Autocannon)

3. Frontline Anchor Playstyle

If your squad needs someone to hold choke points or draw aggro while others focus on objectives, this suit is perfect.

4. Synergizes Well With:

• Autocannon (holding your ground helps)
• Breaker shotgun family
• Shield Generator backpack
• Grenade or Anti-Tank builds

It's less ideal for:

• Scout players
• Long-range snipers
• Hit-and-run mobility builds

Lore & Cosmetic Notes

The set is inspired by Ronald Mambo, a Helldiver known for insane strength and size. The armor reflects that—big frame, intimidating design, and a very militaristic look.

There's also a trivia note: the announcement page once misspelled it as “Best of Prey.”

Cosmetic options:

• Body armor
• Helmet with Standard Issue passive

No special variants exist currently.

Community Opinions

Players who enjoy tanking or standing close to enemies love it. People who prefer fast, fluid movement usually skip heavy sets altogether. But overall, Beast of Prey is viewed as:

• A top-tier melee armor
• A strong anti-knockdown set
• One of the most fun “power fantasy” suits in the game

If you like walking straight into a bug nest and punching your way out, this is your gear.

Summary

The RS-40 Beast of Prey is a heavy, tanky armor built for players who want to stay standing even when the battlefield becomes absolute chaos. With high armor, reduced knockback, and a massive melee damage boost, it excels in frontline, melee, and high-difficulty missions. You unlock it from the Python Commandos Premium Warbond, and while it won't turn you into a speed demon, it absolutely makes you feel unstoppable once you get used to the weight.