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Modern Warfare 4 has integrated with Warzone for Season 1, adding MW4’s full weapon pool, attachments, and other new gear into battle royale. This means you’ll want to update your loadouts for this new season. Our guide will recommend some of the best weapon builds for Warzone in Season 1 of Modern Warfare 4, as well as discuss some of the major changes to weapon customization this year.

For best perks, make sure to check out our MW4 Warzone Season 1 perk guide. 

Weapon customization changes in Warzone for MW4

Gunsmith changes

Call of Duty’s Gunsmith feature returns. This customization system lets you create five-attachment builds for Warzone. Guns from the older CoD’s are still available to use as “Legacy” weapons, but you can no longer customize them in the Gunsmith.

You can only customize MW4 guns. You can choose up to five standard attachments for your weapon build, and you can also include the gun’s unique Apex attachment as a sixth optional attachment.

Apex attachments are special add-ons you can unlock for each gun in MW4, which will drastically change how the weapon is used. Apex attachments are similar to the weapon conversion kits found in the recent Call of Duty games, but in Modern Warfare 4 they don’t cost one of your attachment slots.

Apex attachments aren’t unlocked until you’ve reached the maximum weapon level for a specific gun. Some of these attachments are a bit wacky and aren’t practical add-ons, but others will offer viable bonuses to your weapon.

Weapon augments

Outside of the Gunsmith customization for your create-a-class weapons, it’s also worth noting that you’ll have an additional weapon augmentation you can find and apply during your match. Modern Warfare 4 adds brand-new weapon augments as a new way to upgrade your weapon with significant bonuses. 

Season 1 introduces three weapon augments: 

• QC Augment: Used for faster ADS speed and sprint to fire speed, reduced hipfire recoil, faster ADS movement speed
• Marksman Augment: Use for improved bullet velocity and damage range, reduced horizontal recoil, reduced aiming idle sway
• Handling Augment: Used for faster reload speed, faster rechamber, faster slide to fire speed, reduced first shot recoil, reduced weapon bob, reduced flinch

Again, these aren’t weapon upgrades you can pick before your match. These are limited loot drops you can find by interacting with one of the new “Fly Buy” Buy Stations that will drop from overhead drones. You can only equip one augment, and this only stays equipped to your gun for the duration of the match. The augment you choose will be based on your personal playstyle and weapon of choice.

Our recommended weapon builds for Season 1 of MW4 Warzone can be found below. 

Cronen Osprey

Season 1’s new Cronen Osprey is one of the most powerful choices for assault rifles in Warzone. The recommended attachments are designed for mid-to long-range combat, providing increased damage range, bullet velocity, and recoil control. 

If you don’t want to use a large scope on the Resurgence maps, you can swap the recommended 4x optic for a mini-reflex sight like Slimline Elite or ZLR Type C.

Recommended Cronen Osprey attachments:

• Muzzle: FSS IS300
• Barrel: I0-556 TAC 18″ Barrel
• Optic: Cronen R808 4x Scope
• Magazine: 60 Round Mag
• Underbarrel: FSS Fireline Grip

M4

The M4 is another powerful choice for Warzone, and this is an easy-to-handle assault rifle. The recommended attachments improve damage range and bullet velocity, keep you off the minimap while firing, and speed up your aim-down-sight speed.

Recommended M4 attachments:

• Muzzle: FSS IS300
• Barrel: 16 Highmark Barrel
• Optic: Cronen R808
• Ammunition: 5.56 NATO High Velocity
• Magazine: 45 Round Mag

VEL 46

In terms of close-range power, the VEL 46 submachine gun is one of the best choices for battle royale. This SMG is fairly easy to use and provides great mobility for running-and-gunning in Warzone, especially across the smaller Resurgence maps. The recommended attachments will improve the gun’s bullet velocity, reduce recoil, and improve your movement speed.

Recommended VEL 46 attachments:

• Muzzle: TA TacPro-56
• Barrel: VB-46 Series 11
• Rear Grip: LM Combat Grip
• Ammunition: 4.6x30mm High Velocity
• Underbarrel: FSS Fireline Grip

Optional: The Vel 46 has an Apex attachment called Snap, which will drastically increase your weapon swap speed. This is a great add-on for this weapon build, and it doesn’t cost you anything to equip it.

ISO Nightshade

Another powerful choice for close-range combat in Warzone is the ISO Nightshade submachine gun. This gun features a fast rate of fire, decent mobility, and is fairly easy to control. The recommended attachments will improve your aim-down-sight speed, reduce recoil, boost your ammo count, and increase the gun’s bullet velocity.

Recommended ISO Nightshade attachments:

• Barrel: ZLR Mag-Z 9″
• Stock: EXP G2-44 Stock
• Rear Grip: Demo STP-1
• Ammunition: 9mm Parabellum High Velocity
• Magazine: 40 Round Mag

Optional: The ISO Trace is the gun’s unique Apex attachment. This lets you track players you’ve tagged with bullets, showing their red dot and position on the map. This is worth considering as the ISO Trace is a practical attachment for intel, but equipping this will block the recommended ammunition type. You could swap the High Velocity ammo for the FSS TAC90 Grip instead.

CSG-35

Season 1’s CSG-35 submachine gun isn’t the best pick for Warzone, but you can make a viable build if you want to try this new gun in battle royale. The CSG-35 features the highest fire rate in its class, but you’ll need the recommended attachments to reduce the weapon’s recoil.

Recommended CSG-35 attachments:

• Muzzle: RTR-8 Pro
• Stock: XRK Slight Stock
• Rear Grip: Matuzek Fire-Pro
• Magazine: 40 Round Mag
• Ammunition: 9mm Parabellum High Velocity

KG-7 Vulcan

For sniping, the KG-7 Vulcan is the best sniper rifle choice for Warzone. This is a powerful bolt-action rifle with decent mobility. The recommended attachments will reduce recoil, boost the gun’s bullet velocity, and increase your aim-down-sight speed.

Recommended KG-7 Vulcan attachments:

• Muzzle: Gauge-12 Mono
• Barrel: Haebang RMT762 29
• Bolt: KT76 Light Bolt
• Stock: TT G76-RP Stock
• Ammunition: 7.62x54MMR High Velocity

HAN 86

For sniper support, you could consider using the Vel 46 or ISO Nightshade, but the HAN 86 assault rifle is also a strong option to pair with your sniper. The HAN 86 is fairly easy to use, but the recommended attachments will improve your movement, increase your aim-down-sight speed, and boost your ammo count.

Recommended HAN 86 attachments:

• Muzzle: XRK Mil-Tac Suppressor
• Barrel: SA K556 16″
• Optic: ZLR Type C
• Stock: Meiko L9P-Fold
• Magazine: 45 Round Mag

“}]] [[{“value”:”Modern Warfare 4 has integrated with Warzone for Season 1, adding MW4’s full weapon pool, attachments, and other new gear into battle royale. This means you’ll want to update your loadouts for this new season. Our guide will recommend some of the best weapon builds for Warzone in Season 1 of Modern Warfare 4, as well as discuss some of the major changes to weapon customization this year.

For best perks, make sure to check out our MW4 Warzone Season 1 perk guide. 

Weapon customization changes in Warzone for MW4

Gunsmith changes

Call of Duty’s Gunsmith feature returns. This customization system lets you create five-attachment builds for Warzone. Guns from the older CoD’s are still available to use as “Legacy” weapons, but you can no longer customize them in the Gunsmith.

You can only customize MW4 guns. You can choose up to five standard attachments for your weapon build, and you can also include the gun’s unique Apex attachment as a sixth optional attachment.

Vel 46 Apex attachment

Apex attachments are special add-ons you can unlock for each gun in MW4, which will drastically change how the weapon is used. Apex attachments are similar to the weapon conversion kits found in the recent Call of Duty games, but in Modern Warfare 4 they don’t cost one of your attachment slots.

Apex attachments aren’t unlocked until you’ve reached the maximum weapon level for a specific gun. Some of these attachments are a bit wacky and aren’t practical add-ons, but others will offer viable bonuses to your weapon.

Weapon augments

Lootable weapon augments in-match

Outside of the Gunsmith customization for your create-a-class weapons, it’s also worth noting that you’ll have an additional weapon augmentation you can find and apply during your match. Modern Warfare 4 adds brand-new weapon augments as a new way to upgrade your weapon with significant bonuses. 

Season 1 introduces three weapon augments: 

QC Augment: Used for faster ADS speed and sprint to fire speed, reduced hipfire recoil, faster ADS movement speed

Marksman Augment: Use for improved bullet velocity and damage range, reduced horizontal recoil, reduced aiming idle sway

Handling Augment: Used for faster reload speed, faster rechamber, faster slide to fire speed, reduced first shot recoil, reduced weapon bob, reduced flinch

Again, these aren’t weapon upgrades you can pick before your match. These are limited loot drops you can find by interacting with one of the new “Fly Buy” Buy Stations that will drop from overhead drones. You can only equip one augment, and this only stays equipped to your gun for the duration of the match. The augment you choose will be based on your personal playstyle and weapon of choice.

Our recommended weapon builds for Season 1 of MW4 Warzone can be found below. 

Cronen Osprey

Cronen Osprey assault rifle

Season 1’s new Cronen Osprey is one of the most powerful choices for assault rifles in Warzone. The recommended attachments are designed for mid-to long-range combat, providing increased damage range, bullet velocity, and recoil control. 

If you don’t want to use a large scope on the Resurgence maps, you can swap the recommended 4x optic for a mini-reflex sight like Slimline Elite or ZLR Type C.

Recommended Cronen Osprey attachments:

Muzzle: FSS IS300

Barrel: I0-556 TAC 18″ Barrel

Optic: Cronen R808 4x Scope

Magazine: 60 Round Mag

Underbarrel: FSS Fireline Grip

M4

M4 assault rifle

The M4 is another powerful choice for Warzone, and this is an easy-to-handle assault rifle. The recommended attachments improve damage range and bullet velocity, keep you off the minimap while firing, and speed up your aim-down-sight speed.

Recommended M4 attachments:

Muzzle: FSS IS300

Barrel: 16 Highmark Barrel

Optic: Cronen R808

Ammunition: 5.56 NATO High Velocity

Magazine: 45 Round Mag

VEL 46

Vel 46 assault rifle

In terms of close-range power, the VEL 46 submachine gun is one of the best choices for battle royale. This SMG is fairly easy to use and provides great mobility for running-and-gunning in Warzone, especially across the smaller Resurgence maps. The recommended attachments will improve the gun’s bullet velocity, reduce recoil, and improve your movement speed.

Recommended VEL 46 attachments:

Muzzle: TA TacPro-56

Barrel: VB-46 Series 11

Rear Grip: LM Combat Grip

Ammunition: 4.6x30mm High Velocity

Underbarrel: FSS Fireline Grip

Optional: The Vel 46 has an Apex attachment called Snap, which will drastically increase your weapon swap speed. This is a great add-on for this weapon build, and it doesn’t cost you anything to equip it.

ISO Nightshade

ISO Nightshade submachine gun

Another powerful choice for close-range combat in Warzone is the ISO Nightshade submachine gun. This gun features a fast rate of fire, decent mobility, and is fairly easy to control. The recommended attachments will improve your aim-down-sight speed, reduce recoil, boost your ammo count, and increase the gun’s bullet velocity.

Recommended ISO Nightshade attachments:

Barrel: ZLR Mag-Z 9″

Stock: EXP G2-44 Stock

Rear Grip: Demo STP-1

Ammunition: 9mm Parabellum High Velocity

Magazine: 40 Round Mag

Optional: The ISO Trace is the gun’s unique Apex attachment. This lets you track players you’ve tagged with bullets, showing their red dot and position on the map. This is worth considering as the ISO Trace is a practical attachment for intel, but equipping this will block the recommended ammunition type. You could swap the High Velocity ammo for the FSS TAC90 Grip instead.

CSG-35

CSG-35 submachine gun

Season 1’s CSG-35 submachine gun isn’t the best pick for Warzone, but you can make a viable build if you want to try this new gun in battle royale. The CSG-35 features the highest fire rate in its class, but you’ll need the recommended attachments to reduce the weapon’s recoil.

Recommended CSG-35 attachments:

Muzzle: RTR-8 Pro

Stock: XRK Slight Stock

Rear Grip: Matuzek Fire-Pro

Magazine: 40 Round Mag

Ammunition: 9mm Parabellum High Velocity

KG-7 Vulcan

KG-7 Vulcan sniper rifle

For sniping, the KG-7 Vulcan is the best sniper rifle choice for Warzone. This is a powerful bolt-action rifle with decent mobility. The recommended attachments will reduce recoil, boost the gun’s bullet velocity, and increase your aim-down-sight speed.

Recommended KG-7 Vulcan attachments:

Muzzle: Gauge-12 Mono

Barrel: Haebang RMT762 29

Bolt: KT76 Light Bolt

Stock: TT G76-RP Stock

Ammunition: 7.62x54MMR High Velocity

HAN 86

HAN 86 assault rifle

For sniper support, you could consider using the Vel 46 or ISO Nightshade, but the HAN 86 assault rifle is also a strong option to pair with your sniper. The HAN 86 is fairly easy to use, but the recommended attachments will improve your movement, increase your aim-down-sight speed, and boost your ammo count.

Recommended HAN 86 attachments:

Muzzle: XRK Mil-Tac Suppressor

Barrel: SA K556 16″

Optic: ZLR Type C

Stock: Meiko L9P-Fold

Magazine: 45 Round Mag”}]]  Read MoreGameSpot – All Content