Warzone 2.0: The Best M13B Loadout

The M13B is a semi-automatic assault rifle in Warzone 2.0 that bears a resemblance to the SIG MCX in real life. Although not commonly used, the M13B has recently gained popularity due to the Season 3 Reloaded buff. To be more accurate, the recent Warzone 2.0 patch improved the M13B’s ADS Speed, Damage Range, Hip Spread Accuracy, Minimum Armor Damage, and First Raise animation. But with these changes comes an important question: What is the best loadout for M13B, and how should it be tuned? Read on for a detailed answer.

The Best Loadout for M13B

Call Of Duty Modern Warfare II (2022) M13B Weapon Selection

To mitigate the low time-to-kill on the M13B, its loadout should boost accuracy, range, and damage. For that, players will need to equip this gun with the Harbinger D20 muzzle, 14” Bruen Echelon barrel, FTAC Ripper underbarrel, Aim OP-V4 optic, and the 60 Round Mag.

M13B Attachments	Best Choice
Muzzle	Harbinger D20
Barrel	14” Bruen Echelon
Underbarrel	FTAC Ripper 56
Optic	Aim OP-V4
Magazine	60 Round Mag
Ammunition	5.56 High Velocity

Players seeking better handling and mobility can swap the muzzle with Echoless-80, have the FTAC Tiger Grip for the underbarrel, and use the 5.56 High Velocity ammunition instead of the magazine.

The Best Tuning for the M13B Build

image showing how to tune the m13b loadout in warzone 2.0.

Since the M13B has a low TTK, the aim of the tuning should be to mitigate its recoil, range, accuracy, and power. Now that the gun’s ADS and Minimum Armor Damage is buffed, a slight aggressive modification in its attachment will result in a reliable and consistent Assault Rifle.

Here’s how to tune the buffed M13B:

Harbinger D20: ↑ + 1.19 → +0.85
14” Bruen Echelon: ↑ +0.35 → +0.35
FTAC Ripper 56: ↑ +0.65 → +0.29
Aim OP-V4: ↑ -2.80 → -0.90
5.56 High-Velocity Ammunition: ↑ +0.45 → +0.00
Echoless-80: ↑ +0.79 → +0.40

Suggested Perks for the M13B Class Setup

Call-Of-Duty-Modern-Warfare-2-Sig-MCX-M13B

Ideally, the M13B’s perk package should include items that enhance its speed, reaction time, versatility, and sight. The best options, therefore, are Overkill, Battle Hardened, Fast Hand, and High Alert. As for the equipment, the optimal choices are Stun or Smoke Grenade as the Tactical and Semtex as the Lethal.

Base Perk 1: Overkill
Base Perk 2: Battle Hardened
Bonus Perk: Fast Hand
Ultimate Perk: High Alert
Tactical: Stun or Smoke Grenade
Lethal: Semtex

Is the M13B Worth It?

Although the M13B still has a low TTK, the Season 3 Reloaded buffs have turned it into a reliable mid to long-range AR, especially for the Solos. It’s now worth it to have the M13B in META loadouts and count on it in 1V1 engagements.