The Hazardous M13B is a Weapon Blueprint in Call of Duty: Modern Warfare 2 (2022). It is a blueprint variant of the base weapon M13B, one of the Assault Rifles featured in Call of Duty Modern Warfare 2 DMZ mode. You can Obtain this weapon by Killing The Chemist and exfil with the M13B.

To recreate The Chemist M13B, base weapon of M13B is needed. You can get the base weapon M13B from killing The Chemist in DMZ mode and exfil with the M13B.

Tips: You can get the base M13B without killing The Chemist. Play with your friend who owns M13B in their DMZ Inventory, load into the DMZ, have them drop the weapon, and then you exfil with it. With that, you will unlock the base M13B without have to find and kill The Chemist.

Now that you have the base M13B, It's time to make make the Hazardous M13B. These are the attachment that are being used in Hazardous M13B.

Optic

Barrel

Underbarrel

Laser

Magazine