The ISO 45 is one of the latest weapons to be added to MW2 and Warzone in the Season 4 update. Taking inspiration from Modern Warfare (2019), the ISO 45 brings back nostalgic memories with its familiar functionality.

Like its predecessor, this SMG maintains a lightweight design and offers a high fire rate suitable for engaging targets at short to midrange.

However, what sets it apart is the implementation of higher-caliber rounds, which significantly increase its impact on the battlefield compared to other rapid-firing weapons. Here is how you can unlock it.

Every Way to Unlock the ISO 45 in MW2 & Warzone

To unlock the ISO 45, you must achieve one of the following criteria:

  • Unlock it through the Battle Pass sector D19
  • Extract from DMZ with the weapon.
  • Purchase it from a future store bundle
  • Complete the required challenge once Season 4 ends.

The easiest way to obtain this weapon is through the Season 4 Battle Pass. The ISO 45 is a free weapon, and you do not need to purchase the pass.

ISO 45 in-game

Fastest Way to Unlock the ISO 45

To reach sector D19, you will require 20 Battle Pass tokens. The quickest unlock pathway is as follows:

  1. Sector D1
  2. Sector D2
  3. Sector D3
ISO 45 Pathway

To complete a Battle Pass sector, you must use a token on each reward and another on the HVT sector reward.

Upon doing so, you will then have access to sector D13, where you can unlock this powerful SMG. After unlocking, it will be available to use in-game.

Staff Writer
Scott is a passionate writer, who has now combined two of his favorite things - video games and journalism.