How to build the best M13B class in Modern Warfare 2 and Warzone 2

The first season of Call of Duty: Modern Warfare 2 and Warzone 2 is here. As always, a new season means that some fresh weapons have been added to the mix. One of these weapons is the M13B assault rifle and with the right attachments, you can build a viable class in Modern Warfare 2 and Warzone 2.

Before you can use the M13B, you need to unlock it in the new DMZ mode. The challenge asks you to defeat the Chemist in the radiation zone, an AI enemy in DMZ. The weapon has a lot of recoil due to its high rate of fire, so this class will focus on reducing the recoil.

The best Call of Duty: Modern Warfare 2 and Warzone 2 M13B class

• Muzzle: Echoless-80
• Barrel: 14” Bruen Echelon
• Underbarrel: FTAC Ripper 56
• Rear Grip: D37 Grip
• Optic: Cronen Mini Red Dot

The first attachment used on this build is the Echoless-80, a suppressor which raises bullet velocity and damage range, while improving recoil. The 14” Bruen Echelon is the best of the two barrel options as it continues to boost bullet velocity and recoil control, while addressing damage range and hip fire accuracy.

The final few attachments will continue to make the weapon more accurate. The FTAC Ripper 56 adds more recoil and aiming idle stability. Then, the D37 Grip provides you with even more recoil control. Finally, the Cronen Mini Red Dot is a reliable sight that will allow you to take advantage of the raised accuracy and recoil control.

Screenshot by PC Invasion

Weapon tuning your assault rifle

Once you’ve created your class, you can take a look at weapon tuning your gun. In this case, you can use this feature to make more tweaks to your recoil. To complete your class, you should use a pistol to accompany you in your secondary weapon slot. If you’re undecided on what pistol to use, take a look at our Modern Warfare 2 pistol tier list.