Best ISO 9mm loadout & attachments in Warzone 2 & MW2

Season 6 of Call of Duty: MW2 & Warzone 2 has arrived with a few new weapons including an assault rifle and a submachine gun. The ISO 9mm is a new SMG that you can unlock from the battle pass, and it dominates fights at close range. This is a fast-firing SMG with easy to control recoil, making it a top competition for meta submachine guns like ISO 45 and Fennec 45. Here are the best loadout and attachments for ISO 9mm in Warzone 2.

Bes ISO 9mm SMG Loadout and Class in Warzone 2 & MW2

• Muzzle: Spiral V3.5 Flash Hider
• Barrel: ISO 45 Factory
• Magazine: 50 Round Drum
• Underbarrel: Agent Grip 
• Laser: 1mW Quick Fire Laser

These are the attachments I use while playing battle royale and DMZ with the ISO 9mm SMG. Remember, this is a weapon most powerful at close range, so you'll need to focus on HIP fire accuracy, recoil smoothness, and ADS speed. If you want to equip a scope, swap out the Laser for an Aim OP-V4 Optic.

Alternatively, if you want a stock attachment, swap the magazine to attach the RES 2 Stock. Similarly, the VLK LZR 7mw is a staple Laser attachment you can use as an alternative to the Quick Fire Laser. I prefer to use a Barrel and Muzzle combination with this SMG to improve its damage range and steadiness. The 16″ XLB-S Barrel is another top choice to use instead of the ISO 45 Factory attachment.

Best ISO 9mm Loadout Equipment and Perks 

These are the Perk Packages and equipment I use with the ISO 9mm SMG in Warzone 2 and MW2.

Perk Package

• Overkill
• Double Time
• Fast Hands
• High Alert

Secondary and Equipment

• Secondary Weapon: KV Broadside
• Tactical: Smoke Grenade
• Lethal: Semtex

Related: Bike Parking Key – DMZ (Map Locations)

How to unlock the ISO 9mm submachine gun in Warzone 2 & MW2

You can unlock the ISO 9mm Submachine Gun in Warzone 2 & MW2 from the Season 6 Battle Pass. To unlock this gun, you need to progress to Sector F7 in the Battle Pass. This can be done quickly by using the battle tokens to claim adjacent sectors. I'd recommend unlocking Sector F1, F2, and F3 to easily progress to F7. 

Once you've unlocked the weapon, jump into battle royale, multiplayer, or DMZ to level up the ISO 9mm SMG. My recommendation would be to grind small MP maps like Shipment with Weapon XP tokens activated. This is the quickest method to unlock all the attachments for this powerful SMG. 

Wondering what else is new with Season 6? Check out All weapon nerfs and buffs in Warzone & MW2 Season 6 on Pro Game Guides.