Best Warzone ISO 45 loadout

share to other networks share to twitter share to facebook
Screenshot showing Warzone ISO 45 SMG on a table surrounded by magazines and loose bullets
Credit: Activision
September 21, 2023: Season 6 is on the horizon and we've tweaked the best Warzone ISO 45 loadout and the best attachments to reflect the current meta.

Looking for the best Warzone ISO 45 loadout to use before Season 6 begins? We've got you covered. The latest seasonal update for Warzone has landed and the ISO 45, a compact submachine gun (SMG) capable of excelling in close-quarters action, is still proving popular.

Following the most recent dose of weapon buffs and nerfs, you're bound to select the ISO 45 thanks to its incredible rate of fire and high levels of mobility. With a strong attachment combination equipped, it's very easy to use the ISO 45 to your advantage.

But, before we take a closer look at the best Warzone ISO 45 loadout, check out our other guides showcasing the best AR and the best ranked play loadouts for competitive play.

What is the best Warzone ISO 45 loadout?

  • Muzzle: Bruen Pendulum
  • Barrel: 7" EX Raptor-V2
  • Stock: Mace 650
  • Ammunition: .45 Auto Hollowpoint
  • Magazine: 45 Round Drum
  • Grenades: Semtex/Smoke Grenades

This particular build provides slight enhancements to recoil control, mobility, and accuracy which are essential areas to focus on when gearing the ISO 45 for close-quarters action.

Although there are no improvements to damage, the build is more than capable of breaking through armour and downing opponents in a few seconds.

Screenshot of Warzone player holding ISO 45 SMG in abandoned street
click to enlarge
Credit: Activision

Best Warzone ISO 45 attachments

The Gunsmith contains an extensive range of attachments to choose from and after some testing, we've found a set of five that's guaranteed to improve your performance in Season 5:

  • Muzzle: Bruen Pendulum
  • Barrel: 7" EX Raptor-V2
  • Stock: Mace 650
  • Ammunition: .45 Auto Hollowpoint
  • Magazine: 45 Round Drum

For a reduction in recoil, we've gone with the Bruen Pendulum muzzle and the 7" EX Raptor-V2 barrel for improvements to recoil and to maintain minimal damage drop-off.

Lastly, the 45 Round Drum magazine gives you enough bullets to eliminate multiple opponents in quick succession. It also means you don't have to run for cover for an emergency reload in the heat of battle.

Best Warzone ISO 45 perks and equipment

Once the best ISO 45 attachments are equipped, it's time to select a combination of perks and equipment that can bolster your performance even further. Here's what we recommend using in the early stages of Season 5:


  • Base: Overkill
  • Base: Double Time
  • Bonus: Fast Hands
  • Ultimate: High Alert

Due to the lack of long-range performance, Overkill as a base perk is a sensible decision to make. Alongside the ISO 45, we recommend the trusty M4 for some additional firepower.

For better awareness, High Alert causes your vision to pulse when an opponent has spotted your location. In battle royale, this is a key ingredient to achieve success.



  • Lethal: Semtex
  • Tactical: Smoke Grenade

Semtex grenades are perfect for dealing some extra explosive damage throughout a match while the Smoke Grenade is excellent for providing additional cover when making a late rotation into the circle.

Is the ISO 45 good in Warzone?

After dropping into Vondel and Al Mazrah, it's safe to say the ISO 45 is one of the stronger SMGs available in Warzone and currently dominates the meta.

That's all there is to know about the best Warzone ISO 45 loadout. For more, check out our guide showcasing the best sniper rifle for long-distance duels.

For more articles like this, take a look at our Guides and Call of Duty: Warzone 2 page.