Much like the Kilo assault rifle, the M13 has stuck around because of the consistency of the weapon. Rifles like this one are fantastic on a controller, and they will always offer a versatile way to beam other players at multiple ranges.
As long as the best attachments are used in each slot, the rifle can remain a viable option in the latest Warzone season.
Warzone Pacific Season 3 – Best M13 loadout

While you may use the ten attachment slots on every Vanguard weapon, you'll have to revert to five for the M13 in Warzone Pacific Season 3. Five attachments may seem far more limiting, and it makes each choice much heavier, but the weapons can still efficiently perform.
- Muzzle: Monolithic Suppressor
- Barrel: Tempus Marksman
- Underbarrel: Commando Foregrip
- Ammunition: 60 Round Mags
- Optic: VLK 3.0x Optic
The first attachment is the Monolithic Suppressor, a staple muzzle piece for nearly any Modern Warfare assault rifle. This muzzle option offered sound suppression and, most importantly, increased damage range on the weapon; despite it not being as powerful, it still holds up in a decent loadout.
Next up is the barrel, and for this, you'll want to equip the Tempus Marksman. Again, this is going to increase the damage range of the rifle.
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But you can also expect a bump to bullet velocity and recoil control. Without lengthened bullets, this is going to be an essential addition.
Commando Foregrip underbarrels were another staple attachment for Modern Warfare rifles, and the sentiment remains the same. These grips give the weapon a second boost to recoil control without adding negatives to the ADS speed; however, movement speed will still take a hit.
For ammunition, 60 Round Mags are a safe bet; however, the 50 Round Mags can be chosen if ADS speeds become a problem. You'll lose out on all of that capacity, but it saves some combat speed.

The last attachment here is the VLK 3.0x Optic, which is the counterpart to the G16 2.5x from Vanguard. These sights have always been reliable, and recoil will feel nonexistent with the optic equipped on the M13.
That's all there is to know about the M13 loadout. For more fantastic Warzone content, check out our section dedicated to Call of Duty news, updates, guides, esports coverage and more.
Featured image courtesy of Activision.