Warzone best Swiss K31 loadout: Our Swiss K31 class setup recommendation and how to unlock the Our Swiss K31 explained
How to get the most out of the Swiss K31 in Call of Duty: Warzone.
If you were looking for a new sniper rifle, the Swiss K31 is an intriguing and old school choice. This is a bolt-action sniper rifle, so people already familiar with marksman rifles and similar snipers will feel right at home.
The rate of fire is quicker than other heavy hitters like the ZRG 20mm, for example, which is compensated by a less impressive damage when aiming below the head.
Warzone's latest season has taken players all the way back to 1984 - and this is a sniper rifle you will be seeing often. This page covers how to unlock the Swiss K31 and the best Swiss K31 loadout to prepare yourself for the battlefield.
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Verdansk '84 Trailer | Call of Duty® Warzone™
For more explainers, read our selection of best Warzone weapon recommendations, as well as deep dives into popular picks such as the FARA 83, Stoner 63, AK-47, Bullfrog and PPSh 41.
How to unlock the Swiss K31 in Warzone
Arriving to the roster on April 22nd, 2021, the Swiss K31 first debuted in Warzone at the start of Season 3 - and you requires to reach a specific battle pass level to unlock.
To unlock the Swiss K31 in Warzone, you must reach level 31 of the Battle Pass.
As a second option, you can purchase the Battle Pass that includes the booster pack to take you to level 20 to get part the way there, or spending COD Points to buy tiers.

Reaching level 31 will take some time, but at least you're able to choose how to do it. Warzone, Zombies, and regular Black Ops: Cold War multiplayer modes will give you experience for your Battle Pass. That being said, this makes for a great opportunity to kickstart the Hunt for Adler event, which requires you to play and complete 7 games on Yamantau in Cold War's 24/7 mode.
Once you've reached level 31, the game will let you know of your new weapon in the rewards page after the match. From there, just head to the loadout tab and equip the weapon in the primary slot.
Best Warzone Swiss K31 loadout and attachments
The Swiss K31 is a refreshing addition to the weapons' roster, but it's important to keep in mind both its advantages and limitations. It carries low recoil and great accuracy, but some aspects like aim down sight speed and idle sway control are a top priority in terms of loadout planning.
Below are our recommendations for an optimal Swiss K31 loadout, as well as the corresponding levels for each:
- Muzzle: GRU Suppressor (unlocked at level 46)
- Barrel: 24.9″ Combat Recon (unlock at level 30)
- Optic: Axial Arms 3x (unlocked at level 12)
- Stock: Tactical Stock (unlocked at level 10)
- Handle: Serpent Wrap (unlocked at level 44)
It will take a while to reach level 46, but the GRU Suppressor is worth the effort. This attachment has an array of interesting effects in the Swiss K31, ranging from increased idle sway and vertical recoil control to +100 percent muzzle flash concealment.
This will help you to maintain a steady aim with a clear view on your target. Both the rifle's bullet velocity and aim down sight time will be decreased, but don't worry since it will be compensated with the rest of the loadout.
The 24.9 Combat Recon barrel is the perfect companion for the GRU Suppressor. Since your bullet velocity is decreased with the muzzle, this not only compensates but also enhances the stat further by 75 percent. You will lose a bit of idle sway control, but again, that's what the GRU is for.

It wouldn't be a sniper rifle without a long list of optics to choose from. Whilst there is a degree of personal preference involved in this particular category, we found the Axial Arms 3x to be the best choice for this weapon. You can get it early, it carries up to 3.0x magnification, and isn't at all intrusive in terms of field of view when aiming down the sight.
Since it's likely that you'll be moving around quite a bit whilst aiming with your sniper rifle in Warzone, the Tactical Stock gives you a much needed boost to walking movement speed whilst doing so. You can get it early and, thankfully, it carries no negative effects.
Lastly, the Serpent Wrap is perfect to mitigate the slow aim down sight time. You will lose a bit of sprint to fire time, but it's nothing compared to the balance it provides to the loadout as a whole.
Learn our recommendations for the best weapons in Season 3, including meta relevant choices such as the FARA 83, Stoner 63, AK-47 and Bullfrog, as well as new additions PPSh-41 and Swiss K31. For a limited time you can also collect Adler intel locations. Finally, read up on how to master last season's weapons, including the Sykov, ZRG 20mm, R1 Shadowhunter, LC10 and FARA 83.
Best Warzone Swiss K31 class setup, perks and equipment
Here's our choices for the best items - such as equipment and Perks - to make the best Swiss K31 class setup in Warzone:
- Perk 1: Cold-Blooded (Unlocks at level 29)
- Perk 2: Overkill (Unlocks at level 38)
- Perk 3: Tracker (Unlocks at level 51)
- Secondary: AK-47 (Unlocks at level 7)
- Tactical: Heartbeat Sensor (Unlocks at level 1)
- Lethal: Claymore (Unlocks at level 1)
As you will be mainly using the sniper rifle in Warzone, either to cover a teammate or just as you defend your spot before the circle closes yet again, Cold-Blooded is a must. This will allow you to go undetected by the AI targeting system, as well as thermal optics from enemies.

As per usual we recommend opting for Overkill as the second perk. On this occasion we went for the AK-47, since the Season 3 update has adjusted its recoil pattern and it has become a fond choice of ours again (sorry, FFAR 1). It's a versatile assault rifle that should cover everything from short to long range, and pairs greatly with the sniper.
For the third perk, we went for Tracker over the others thanks to the ability to see imprints of enemy footsteps.
Lastly, the Heartbeat Sensor is a great companion for the third perk, allowing you to keep an eye on enemies that you haven't crossed paths with yet. But in case anyone manages to sneak past your vicinity, having a Claymore placed near you should provide for a helping hand.