GS45 Warzone Loadout: Legacy Preset
October 30, 2026 · Updated November 10, 2026 · 4 min read
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
On this page
GS45 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 GS45 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 GS45 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 Its attachment choices, rankings, share codes and statistics are historical reference only.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.
Flat is the word for the first two TTK bands on this Black Ops 6 pistol, yet both sit above a full second. WZStats ranks it 78th for Close Range in Tier C for Warzone Season 6, so call it off-meta whatever warzoneloadout.games' Meta label suggests at #177. No replacement is named on its sheet, so use it only as a Gunfighter secondary behind a stronger main gun.
Best GS45 loadout
This is CODMunity's Close 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 | Reinforced Barrel | +20% bullet velocity, +23.7% range |
| Fire Mods | Recoil Springs | -7% gun kick, -7% horizontal recoil, -5% vertical recoil |
| Magazine | Extended Mag II | +14 magazine size, +12% ADS time, +18% sprint-to-fire time, +19% reload time |
| Muzzle | Ported Compensator | -24% gun kick, -20% vertical recoil |
| Rear Grip | Ergonomic Grip | -26% ADS time |
| 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 | VOYAK KT-3 | WZStats' top pairing; next are MK35 ISR and DS20 MIRAGE |
Why this build works
CODMunity shows 1049ms at 0-10m and 1081ms at 10-40m, then 1342ms at 40-80m and 1431ms at 80-120m. Season 3 explains the shape: max damage fell to 25 from 65, but its range stretched to 30.4m, and the headshot multiplier rose to 3x with body parts at 2x. At 286 RPM, the gun simply cannot end a fight quickly. Ergonomic Grip takes 26% off ADS time, outweighing the 12% added by Extended Mag II, for 141ms overall. That mag also gives +14 rounds, reaching 24. Reinforced Barrel adds 20% bullet velocity and 23.7% range, and Ported Compensator cuts gun kick by 24% and vertical recoil by 20%.
How to play it
Use it where its damage range works, roughly anywhere under 30.4m, and aim high because of that 3x headshot multiplier. The 141ms ADS helps you land the first shot, but a full-auto opponent will usually outpace 286 RPM once both are firing. Its role is finishing weakened targets and covering a reload on your VOYAK KT-3, MK35 ISR or DS20 MIRAGE. Avoid taking fresh fights with it at any distance.
Alternative setups
Recommended, Battle Royale (WZStats): Kepler Microflex, Suppressor, Long Barrel, Extended Mag II, Rapid Fire.
Unlock notes
The sources list these requirements for the main build: Reinforced Barrel: Level 25; Recoil Springs: Level 12; Extended Mag II: Level 22; Ported Compensator: Level 27; Ergonomic Grip: Level 28.
Sources
- CODMunity: GS45 loadouts
- WZStats: GS45 loadouts
- Warzone Loadout: GS45
- CODMunity: Warzone patch notes
Checked: 30 October 2026. Reflects Warzone Season 6, latest balance patch 14 October 2026.