M13B Warzone Loadout: Legacy Preset
30 de octubre de 2026 · Actualizado 10 de noviembre de 2026 · 4 min de lectura
Warzone legacy preset
Current Warzone uses a fixed Legacy preset for this weapon. Its attachments cannot be edited in Gunsmith, and old build codes cannot be imported.
Source check: 2026-11-10 · 1 independent source families
En esta página
M13B is part of Warzone’s Legacy weapon pool. In current Warzone, choose its provided preset or an available Blueprint from the Legacy tab. You cannot recreate an old custom Gunsmith setup for it.
Best M13B loadout in current Warzone
Use the Legacy preset supplied in game. The official Season 1 notes say Legacy weapons are already configured for Warzone and cannot be edited in Gunsmith. There is no verified evidence here that a particular paid Blueprint is stronger, so we do not recommend buying one for a presumed advantage.
How to equip it
- Open Create-a-Class and choose a primary or secondary weapon slot.
- Open the Legacy tab.
- Choose M13B and equip its available preset or Blueprint.
- If it is locked, check its XP requirement in Armory Unlocks.
What changed
With the November 2026 Season 1 integration, weapons from Modern Warfare II through Black Ops 7 remain available as Legacy weapons. They do not support editable attachments, Modern Warfare 4 mastery camos, reticle challenges, cosmetic Gunsmithing or build sharing.
A multiplayer setup for this weapon belongs to its original game. Do not use an old Warzone attachment guide as an editable current-season build.
Sources
Checked: 10 November 2026. Applies to the fixed Legacy weapon system in current Warzone; this is not a claim that the weapon is the strongest choice.
Historical build archive — before 6 November 2026
The original guide below was researched on 30 October 2026. Its attachment choices, rankings, share codes and statistics are historical reference only. They do not describe the fixed preset supplied in current Warzone, and the old custom setup cannot be recreated through its current Gunsmith.
Kill speed is the M13B's selling point: this Modern Warfare II rifle holds a 639ms TTK through 40m. In Warzone Season 6 it is a respectable but off-meta choice, sitting at rank 36 and Tier B on WZStats yet #198 on warzoneloadout.games. Run it if you value that speed, and consider the VOYAK KT-3, MK35 ISR or DS20 MIRAGE first.
Best M13B loadout
This is CODMunity's Long Range build, and warzoneloadout.games lists the same five picks. CODMunity last updated it on 2025-12-04, before the 14 October 2026 patch.
| Slot | Pick | What it does |
|---|---|---|
| Barrel | 14" Bruen Echelon | Barrel; effect not listed |
| Magazine | 60 Round Mag | Magazine; effect not listed |
| Muzzle | Casus Brake | Muzzle; effect not listed |
| Optic | JAK Glassless Optic | Optic; effect not listed |
| Underbarrel | Paracord Grip | Underbarrel; effect not listed |
| Perks | Scavenger, Sprinter, Adaptive | WZStats: Downed enemies drop ammo, equipment and plates; Lets you reload during tactical sprint and eases movement penalties; Better explosive defense, movement and handling |
| Equipment | Heartbeat sensor, Frag | WZStats: Limited-use tablet that shows rough enemy positions nearby; Cookable grenade |
| Secondary | VMP | WZStats' top pairing; next are MPC-25 and REV-46 |
Why this build works
Four TTK bands tell the story: 639ms at 0-10m and 10-40m, 881ms at 40-80m and 990ms at 80-120m. WZStats lists good TTK and low recoil as pros, with low bullet velocity as the con. The build shows 854m/s velocity at 845 RPM with a 60-round mag. ADS is a heavy 350ms, sprint-to-fire 214ms and reload 3106ms, with an 8.2/10 EaseScore. The Season 4 Reloaded buff explains much of this, raising max damage from 24 to 34, medium damage from 21 to 27 and bullet velocity from 600m/s to 700m/s, while lowering the headshot multiplier from 1.4x to 1.05x.
How to play it
Aim to take fights at 10-40m with your sights already up, since the 350ms ADS is the main liability. Lead moving targets at longer range, because low velocity is its one listed weakness. CODMunity's Sniper Support version cuts ADS to 286ms and records 639/663/938/1016ms. Carry the VMP, MPC-25 or REV-46 for rooms where even 350ms is too slow.
Alternative setups
Sniper Support, Warzone (CODMunity): 60 Round Mag, Casus Brake, JAK Glassless Optic, M13C Factory, DR-6 Handstop. CODMunity lists 639ms inside 10m and 663ms from 10-40m, with 286ms ADS. Last updated 2025-12-04.
Recommended, Battle Royale (WZStats): Nydar Model 2023, VT-7 Spiritfire Suppressor, 14" Bruen Echelon, XRK Bowbreaker Grip, 60 Round Mag.
Unlock notes
The sources list these requirements for the main build: 14" Bruen Echelon: Level 17; 60 Round Mag: Level 18; Casus Brake: Level 20 on the Longbow; JAK Glassless Optic: Do the weekly challenge; Paracord Grip: Unlock with Armory unlocks!.
Sources
- CODMunity: M13B loadouts
- WZStats: M13B loadouts
- Warzone Loadout: M13B
- CODMunity: Warzone patch notes
Checked: 30 October 2026. Reflects Warzone Season 6, latest balance patch 14 October 2026.