The ISO 45 is a hard-hitting SMG that is perfect for close-quarters engagements in Warzone 2 – here’s the best loadout for it to increase its accuracy:
Attachment | Tuning | How to Unlock |
FTAC Castle Comp (Muzzle) | +0.36 ↑ +0.22 → | 556 Icarus Level 10 |
VLK LZR 7MW (Laser) | -0.22 ↓ -22.48 ← | STB 556 to Level 5 |
Cronen Mini Pro (Optic) | -1.58 ↓ -2.25 → | Expedite 12 Level 7 |
45 Round Drum (Magazine) | N/A | ISO 45 Level 14 |
A30 Stout (Rear Grip) | -0.35 ↓ -0.10 ← | ISO 45 Level 4 |
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Pair the ISO 45 with one of the best assault rifle loadouts in Warzone 2 so you can get kills at all ranges!

This ISO 45 build is up to date following the Warzone 2 Season 6 update on September 27, 2023.
Best Secondary Weapon for ISO 45 Class
The ISO 45 is a great close-range weapon, but its range is quite limited. Therefore, we suggest using one of these versatile, long-range assault rifles alongside it:
Best Perks & Equipment for ISO 45 Loadout
The ISO 45 is perfect for an aggressive playstyle in Warzone 2. With that in mind, we have opted for the following perks and equipment in your custom class:
- Perk 1: Overkill
- Perk 2: Double Time
- Perk 3: Fast Hands
- Perk 4: Quick Fix
- Tactical: Stun Grenade
- Lethal: Semtex
ISO 45 Alternatives in Warzone 2
While most other SMGs in Warzone 2 may not hit as hard as the ISO 45, there are a few options that can kill just as quickly: