Ranking All New Space Marine Detachments in Warhammer 40K

See how the new Space Marines detachments rank in Warhammer 40K 10th Edition. Full tier list and meta breakdown for October 2025.

Love them or hate them, Space Marines are the darlings of the Warhammer 40K universe. Nothing drives conversations about the hobby faster, and getting new players into the game almost always starts with interest in Space Marine models and lore.

This is a huge reason why Games Workshop has updated Codex: Space Marines with new detachments in recent weeks, alongside new named character models. This was a smart move to keep the faction relevant, encourage engagement, and maintain player interest. There’s a lot to like about these new detachments.

As it stands, it seems we now have new detachments for all the factions that were scheduled for updates. Unless Ultramarines receive an unadvertised update, but the wider fanbase would likely be upset if Gladius, one of the best detachments in the game, got a significant buff.

These updates have brought new detachments for Salamanders, Raven Guard, Imperial Fists, Iron Hands, and White Scars. The rules vary from highly flavorful and interesting to somewhat underwhelming. Here’s how they rank in terms of competitiveness and usability.

1. Shadowmark Talon – Raven Guard; Top Detachment in Warhammer 40K?

There is no question that this is the top new detachment. Shadowmark Talon may even claim a spot as one of the best detachments in the game, sitting just behind Gladius in overall power.

While the army lists aren’t the most thematic (Centurions aren’t what most people envision for Raven Guard), the combination of strong shooting, mobility tricks, and abilities to move units, infiltrate, and deep strike makes this detachment incredibly effective.

Aethon Shaan is a standout unit, capable of performing exceptionally in games and making up his points cost easily. Shadowmark Talon is poised to be a major factor at the World Championship in the coming weeks and should see a combination of large player numbers and decent success.

2. Spearpoint Task Force – White Scars

White Scars have retained the strengths of their previous detachments, which makes this one particularly appealing. Army-wide advance and charge is excellent, and this detachment improves on the limitations of Stormlance. Stratagems and enhancements now benefit more units, not just those that are mounted, and that is huge.

This detachment enhances nearly every unit in the army, from damage output to survivability, and encourages faction flavor through incentives for bikes, particularly with Suboden Khan, a must-take model with this detachment that can turn into a substantial damage-dealer when paired with Outriders.

This is another faction that should actually have decent representation outside of Raven Guard and Ultramarines.

3. Hammer of Avernii – Iron Hands

The decision to boost First Company Task Force was questionable, especially after Imperial Fists already received a detachment with a similar focus.

The detachment rule allowing re-rolls of Oath of the Moment wound rolls of 1s is functional but not thrilling. However, stratagems interacting with Dreadnoughts have improved, and enhancements provide additional flexibility. Terminators remain underwhelming in value, but adding Caanok Var to the field allows a second Oath of the Moment target after the first is destroyed—making this detachment stronger in the right hands.

This is probably the best way to make First Company even a little bit viable, but it still doesn’t feel as good as an improvement on Ironstorm. However, we all know how that could have the opportunity to disrupt the overall meta in a disastrous way.

4. Forgefather’s Seekers – Salamanders

Competitive viability drops off with this detachment. Infernus Marines are limited in effectiveness, and restricted access to torrent weapons reduces both thematic potential and practical success on the battlefield.

The Assault on all Weapons ability adds strength when fighting in close range, but overall, the detachment struggles to compete with the likes of Shadowmark Talon or Spearpoint. While an improvement over the previous codex detachment, Forgefather’s Seekers still feels underwhelming and unlikely to perform well in the competitive scene.

5. Emperor’s Shield – Imperial Fists

Emperor’s Shield is the most frustrating new detachment. It improved on First Company Task Force, but it leaves the codex’s Anvil Siege Force behind.

All Imperial Fists wanted was a way to make Anvil somewhat viable, and instead, it comes across that Games Workshop is just trying to sell more boxes of Terminator kits that are already going to sell out.

Terminators are not strong in the current meta, and this detachment does not gain an additional Oath of the Moment like the Iron Hands counterpart. Buffs to Assault Terminators could help, but it’s difficult to justify running Emperor’s Shield over Hammer of Avernii, which already offers better rules and flexibility.

Conclusion

The new Space Marine detachments in Warhammer 40K 10th Edition bring a mix of innovation, flavor, and competitive power. Raven Guard’s Shadowmark Talon and White Scars’ Spearpoint Task Force clearly stand out, while other detachments like Forgefather’s Seekers and Emperor’s Shield improve on past offerings but remain niche or situational.

Overall, Games Workshop has provided some exciting options for players looking to explore new tactics and maximize faction potential. For competitive players, understanding which detachments deliver the best value on the table is key to success.

Are you experimenting with these new detachments in your games of Warhammer 40K? Share your experiences and list builds in the comments below, and don’t forget to check back for updates on the evolving Warhammer 40K meta. Whether you’re a collector, painter, or competitive gamer, these detachments offer fresh ways to enjoy your Space Marines.

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FAQs: Space Marines Detachments – Warhammer 40K

Which new Space Marine detachments are the most competitive?

Shadowmark Talon (Raven Guard) and Spearpoint Task Force (White Scars) are currently the strongest in terms of gameplay impact and meta viability.

What makes Shadowmark Talon so effective?

Its combination of strong shooting, mobility, and deep strike abilities allows Raven Guard players to control the board and punish opponents efficiently.

Are Forgefather’s Seekers and Emperor’s Shield viable?

They are situational. Forgefather’s Seekers offers limited effectiveness, while Emperor’s Shield improves slightly on past detachments but remains niche.

Which detachments should competitive players focus on?

Raven Guard’s Shadowmark Talon and White Scars’ Spearpoint Task Force should be the priority for tournaments and meta-focused play.

Why are these new detachments important for Warhammer 40K 10th Edition?

They provide fresh strategies, improve faction balance, and offer new tactical options that impact competitive play and list-building decisions.

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