Space Marine 2 Operations have six difficulty levels, which the game calls threat levels: Minimal, Average, Substantial, Ruthless, Lethal and Absolute. The game recommends class level 1, 5, 10, 15, 25 and 25 for them. Going up a tier makes enemies tougher, shrinks your armour and health, tightens your dodge windows and makes respawns slower. In return you get better Armoury Data, more XP and more Requisition. The campaign has its own four settings (Easy, Normal, Veteran, Angel of Death). Siege and Stratagems each have a Normal and a Hard mode built on top of the Operations tiers.
This page explains what changes at each tier, when you’re ready for it and how to survive it. Figures are current as of Hotfix 15.2 (October 2026). Most of the numbers come from the Space Marine 2 community wiki’s breakdown of game data. The patch history comes from Focus Entertainment’s official patch notes.
All Operations difficulty levels at a glance
| Threat level | Rec. level | Enemy health | Your max health | Armour per segment | Mortal Wound on | Respawn | Armoury Data | Req. Points (win) |
|---|---|---|---|---|---|---|---|---|
| Minimal | 1 | Base | Full | 10 | 2nd incap | 1 min | – | 35 |
| Average | 5 | ×1.6 | Full | 7.5 | 2nd incap | 1 min | Master-Crafted | 55 |
| Substantial | 10 | ×2.9 | −25% | 5 | 1st incap | 1 min | Artificer | 95 |
| Ruthless | 15 | ×4 | −30% | 4.5 | 1st incap | 2 min | Relic | 165 |
| Lethal | 25 | ×4 | −50% | 2.5 | 1st incap | 5 min | Relic | 220 |
| Absolute | 25 | ×4 (bosses ×5–6) | −50% | 2.5 | 1st incap | 5 min | Relic | 260 |
At every tier, respawning brings you back with 40% less health.
What changes at each tier
Minimal: learning mode
Minimal is generous. You get lots of equipment drops, your own explosions don’t hurt you, Medicae Stimms heal 50% instead of 35%, and reviving a teammate is 30% quicker. You can go down once and still be revived without a Mortal Wound. Use it to learn the Operations maps, try out a new class or practise parrying. You don’t get any Armoury Data here, though, so don’t stay long.
Average: the real starting point
Enemies have 1.6× health, your armour segments get smaller, and you start taking 25% damage from your own explosions. Stimms drop to 35% healing. Grenades get a big damage boost against enemies (×1.9), which is a pattern you’ll see all the way up the ladder. Average is the first tier with Master-Crafted Armoury Data, so it’s where weapon progression really starts.
Substantial: the first wall
This is where most new players struggle, and it’s easy to see why. Enemy health almost doubles compared with Average, to ×2.9. Your max health drops by 25%, and armour segments are half the size they are on Minimal. Your dodge invulnerability and perfect-dodge windows shrink by 35%. Armour takes twice as long to start regenerating. And your first incapacitation now gives you a Mortal Wound, so if you go down a second time, you’re dead. In return you get Artificer data. You need to be using parries and gun strikes properly by now.
Ruthless: the Relic farm
Ruthless pushes enemies to ×4 health and takes 30% off your max health. It doubles the respawn timer to two minutes and adds limited ammo caches: each player can only refill up to five times their max ammo. Ruthless is the first tier that gives Relic Armoury Data, and it pays 165 Requisition per win. For a lot of players it’s the sweet spot for farming.
Lethal: endgame begins
Lethal was added in Patch 4 (October 2024). It doesn’t add extra enemy health over Ruthless, but everything else gets harsher:
- Max health −50%, armour segments shrink to 2.5, and armour takes three times as long to start regenerating
- Respawn timer goes up to five minutes, but killing Majoris or Extremis enemies takes 20 seconds off it, and killing a Terminus boss takes 60 seconds off
- Up to two Extremis enemies can spawn together, and Extremis spawns come with tougher escort packs
- Majoris and Extremis enemies recover from incapacitation twice as fast (their execution window is halved)
- Majoris enemies can become enraged
- Ammo cache refills drop to three times your max ammo
Note for returning players: when Lethal launched, it had a “Tight Formation” rule where armour only came back from finishers if you stayed close to your squad. Saber removed it in Patch 4.1 after feedback that it punished Assault and Vanguard. A similar rule now only shows up as an optional modifier (“Squad Unity”) in Stratagems and Siege.
Absolute: the top tier
Absolute was added in Patch 6 (February 2025). Soon after, the game director said the team would “stick to the existing 6 difficulties” so the matchmaking pool doesn’t get split further. Since then, extra challenge has come from modifiers (Stratagems, Crucible Penances) instead of a seventh tier. Absolute keeps everything from Lethal and adds:
- Terminus bosses with far more health. Bosses that can turn up on any map have ×5 health, and mission-specific bosses have ×6. The Hierophant Bio-Titan is the exception at ×4.
- A second Terminus boss can appear in a mission (added in Patch 7), even on missions that already have a final boss
- Up to three Extremis enemies can spawn at once, sometimes with a Zoanthrope pair on top
- Supply drops are rarer
Absolute is the base for the Hard versions of Stratagems and Siege, and it pays the most Requisition and XP in Operations. If you want to know what the Tyranid monsters you’ll be fighting are like on the tabletop, we’ve ranked them all.
Rewards by difficulty
According to the community wiki’s breakdown, here’s what a successful Operation pays at Extermination Rank C (before any Quick Match or Rank bonuses):
| Threat level | Mission XP | With Gene-Seed |
|---|---|---|
| Minimal | 630 | 815 |
| Average | 945 | 1,225 |
| Substantial | 1,260 | 1,635 |
| Ruthless | 1,890 | 2,455 |
| Lethal | 2,830 | 3,675 |
| Absolute | 3,780 | 4,910 |
Absolute pays six times as much XP as Minimal. Three more things affect your rewards. Extermination Rank A (killing over 85% of enemies) multiplies the main objective XP by ×1.4. Quick Match adds 20%. And Armoury Data only counts if you win. Some cosmetics, such as helmets and pauldrons, are also locked behind clearing Operations on Lethal or Absolute.
How to unlock the higher difficulties
The Operations menu shows a recommended class level for each tier: 1, 5, 10, 15, 25 and 25. The developers confirmed in February 2025 that Absolute is locked for brand-new players. They have also said they plan to add a level lock to Hard Stratagems and Hard Siege. They haven’t published a detailed unlock checklist, so check the Operations terminal to see exactly what’s open to you.
Our practical advice: treat the recommended level as the minimum, not the target. A level 25 class with Relic weapons and a full set of perks will have a much better time on Lethal than a fresh level 25 with Master-Crafted gear. If you need help setting up perks, see our class builds guide.
Siege, Stratagems, Crucible and campaign difficulty
| Mode | Settings | Built on |
|---|---|---|
| Siege (Imperial and Chaos) | Normal / Hard | Normal is based on Average. Hard is based on Absolute, and Atonements (negative modifiers) start from wave 6 |
| Stratagems | Normal / Hard | Normal is based on Substantial. Hard is based on Absolute, plus you deal 15% less damage and take 30% more |
| Crucible | 6 tiers of Penances | Your own debuffs on top of an Operation. Level 25 classes only |
| Campaign | Easy / Normal / Veteran / Angel of Death | Separate story settings. Veteran gives Artificer data, and your first incapacitation gives a Mortal Wound |
In Siege, waves get harder no matter which setting you pick. From wave 11, every time the timer runs out enemies take less damage and deal more. From wave 16, their melee attacks go straight through your armour.
Tips for each tier
| Tier | Focus on |
|---|---|
| Minimal / Average | Learn parry (blue) vs dodge (red), use gun strikes on every opening, learn the maps |
| Substantial | Treat your first down as your last. Stop taking free hits, use stimms to clear Mortal Wounds |
| Ruthless | Save primary ammo for elites and use melee on the horde. Make sure your squad has a mix of classes |
| Lethal | Execute elites fast before they recover. Kill Majoris enemies to speed up teammates’ respawns |
| Absolute | Plan for two bosses. Save grenades for Extremis packs, since grenades get a big damage boost on higher tiers |
Want more general advice? Our Space Marine 2 tips and tricks cover combat basics, and our best class tier list explains which classes make the higher tiers easier.
Common mistakes
- Jumping from Average straight to Lethal with friends. Your armour segments shrink from 7.5 to 2.5, and your first incapacitation gives you a Mortal Wound.
- Thinking Lethal means much tankier enemies. Basic enemies have the same ×4 health as on Ruthless. What makes Lethal hard is your smaller health pool, extra elites and five-minute respawns.
- Ignoring the ammo cap. From Ruthless upwards, ammo caches are limited for each player.
- Not carrying a Guardian Relic. On Ruthless and above, only one spawns per mission. It shares a slot with the Gene-Seed, so decide as a team who carries which.
FAQ
How many difficulty levels are in Space Marine 2?
Operations have six: Minimal, Average, Substantial, Ruthless, Lethal and Absolute. The campaign has four: Easy, Normal, Veteran and Angel of Death. Siege and Stratagems each have Normal and Hard.
What’s the hardest difficulty in Space Marine 2?
Absolute, added in Patch 6. Hard Stratagems are effectively even tougher, because they’re based on Absolute and also cut your damage by 15% and increase the damage you take by 30%. The Crucible lets level 25 players add their own Penances on top.
What level should I be for Lethal?
The game recommends level 25 for both Lethal and Absolute. Ideally you’ll also have Relic-tier weapons and a working perk build.
Is Lethal harder than Ruthless?
Yes, by a lot. Basic enemies have the same health, but your max health is halved, armour segments drop from 4.5 to 2.5, armour regeneration is slower, respawns take five minutes and up to two Extremis enemies spawn together.
What’s the best difficulty for farming?
Ruthless is the efficient choice for most players. It’s the first tier with Relic Armoury Data and it pays 165 Requisition per win. Lethal and Absolute pay more XP if your squad can clear them reliably. A failed mission pays nothing, so pick a tier you can actually finish.
Do higher difficulties give better loot?
Yes. Armoury Data goes from Master-Crafted (Average) to Artificer (Substantial) to Relic (Ruthless and above), and XP and Requisition go up with every tier. For which Operations to farm, see our operations guide, and for loadouts see the weapons guide. For the bigger picture, see the complete Space Marine 2 guide.
What is Extermination Rank in Space Marine 2?
Extermination Rank is a grade based on how many enemies your squad kills during an Operation. Extermination Rank A, for killing over 85% of enemies, multiplies the main objective XP by 1.4. The XP figures in our rewards table are at Rank C, before Quick Match or rank bonuses, so clearing more of the map is an easy way to earn faster.
Do enemies level up in Space Marine 2?
No, enemies don’t have levels. The threat level you pick scales them instead: enemy health goes from base on Minimal to 1.6 times on Average, 2.9 times on Substantial and 4 times on Ruthless and above, with bosses tougher still on Absolute. Higher tiers also bring more Extremis spawns and reduce your own health and armour.