How to unlock ISO 45 in Warzone and Modern Warfare 2

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Screenshot of ISO 45 being held by Call of Duty player in urban street
Credit: Activision
June 13, 2023: Season 4 is a few days away and we've got everything you need to know about how to unlock the ISO 45 SMG.

Wondering how to unlock the ISO 45 in Warzone and Modern Warfare 2? We've got you covered. Season 4 is finally here and as part of the latest update for multiplayer and the battle royale, the ISO 45 is one of two new weapons as soon as you drop into the action.

This particular weapon joins the Tempus Razorback as part of the Season 4 battle pass and fits into the ever-expanding submachine gun (SMG) category which is hugely exciting news for those looking to get up close and personal with the opposition over the course of a match.

Before we take a closer look at how to unlock the ISO 45, take a look at our other guides highlighting the best Warzone 2 AR and all there is to know about the next Modern Warfare 2 double XP event.

How to get ISO 45 in Warzone and MW2

As the ISO 45 is part of the battle pass, getting your hands on the SMG is an incredibly straightforward process. To unlock, complete Sector D19 of the battle pass. Thankfully, this sector is one of a few free tiers meaning you don't have to fork out any money to obtain the SMG.

If you're not a fan of the grind, you can choose to spend money on the BlackCell bundle which comes with exclusive cosmetics and a number of battle pass tokens.

Screenshot showing Warzone player wearing a ghillie suit and holding the ISO 45 SMG
click to enlarge
Credit: Activision

For seasoned Call of Duty veterans, the ISO 45 will sound familiar. The SMG first featured in 2019's Modern Warfare and the original Warzone. Infinity Ward says "the ISO 45 functions similarly to the old ISO" which is great news when it comes to close-range combat.

Armed with a lethal rate of fire and a lightweight frame, the ISO 45 is more than capable of shredding through any target in close proximity and with a bit of trigger discipline, it can deal plenty of damage at longer distances.

When does Warzone and MW2 Season 4 start?


Season 4 for the freshly rebranded Warzone and Modern Warfare 2 kicks off on June 14, 2023, which means there are only a few more days before you can load in and see how the ISO 45 compares against the rest of the arsenal.

There you have it, that's all there is to know about how to unlock the ISO 45 in Warzone and Modern Warfare 2. For more Call of Duty, check out our guides showcasing the best Warzone 2 AR and the best Modern Warfare 2 ranked play loadouts for competitive play.

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