In Warzone 2 and Modern Warfare 2 (CODMW2 2022), players can use and unlock the STB 556 (Assault Rifle). Get to know the builds for this weapon, attachments, stats, and more using this guide.
Note that this guide is a work in progress and will be updated in the coming days as more info is acquired.
By default, the STB 556 carries the following rounds when you spawn:
The STB 556 is unlocked at Level 41. You can check out how to level up fast to get it using this guide.
This part is currently being updated. Please stay tuned!
| Header | Pros | Cons |
| Slimline Pro | + Precision Sight Picture | – Aim Down Sight Speed |
| SZ Mini | + Precision Sight Picture | – Aim Down Sight Speed |
| Cronen Mini Red Dot | + Precision Sight Picture | – Aim Down Sight Speed |
| Cronen Mini Pro | + Precision Sight Picture | – Aim Down Sight Speed |
| SZ Sigma-IV Optic | + Precision Sight Picture | – Aim Down Sight Speed |
| SZ Minitac-40 | + Precision Sight Picture | – Aim Down Sight Speed |
| XRK On-Point Optic | + Precision Sight Picture | – Aim Down Sight Speed |
| DF105 Reflex Sight | + Precision Sight Picture | – Aim Down Sight Speed |
| Monocle CT90 | + Precision Sight Picture | – Aim Down Sight Speed |
| Corvus SOL-76 | + Precision Sight Picture | – Aim Down Sight Speed |
| SZ Recharge-DX | + Precision Sight Picture | – Aim Down Sight Speed |
| SZ SRO-7 | + Precision Sight Picture | – Aim Down Sight Speed |
| Corio RE-X Pro | + Precision Sight Picture | – Aim Down Sight Speed |
| Corio Enforcer Optic | + Precision Sight Picture | – Aim Down Sight Speed – Aim Walking Movement Speed |
| SZ Lonewolf Optic | + Precision Sight Picture | – Aim Down Sight Speed – Aim Walking Movement Speed |
| Kazan-Holo | + Precision Sight Picture | – Aim Down Sight Speed – Aim Walking Movement Speed |
| Corvus Downrange-00 | + Precision Sight Picture | – Aim Down Sight Speed – Aim Walking Movement Speed |
| SZ Holotherm | + Precision Sight Picture + Thermal Target Identification | – Aim Down Sight Speed – Aim Walking Movement Speed |
| XTEN Angel-40 | + Precision Sight Picture + Target Range Indicator | – Aim Down Sight Speed – Aim Walking Movement Speed |
| VLK 4.0 Optic | + 4.0x Magnification | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Schlager 4X | + 3.4x Magnification | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Forge TAC Delta 4 | + 5.5x Magnification | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Cronen Zero-P Optic | + 5.0x Magnification | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| SZ Bullseye Optic | + 6.0x Magnification | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| SZ Aggressor-IR Optic | + 6.3x Magnification + Thermal Target Identification | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Schlager Night View | + 6.0x Magnification + Thermal Target Identification | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| VX350 Thermal Optic | + 5.5x Magnification + Thermal Target Identification | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Teplo-OP3 Scope | + 5.0x Magnification + Thermal Target Identification | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| DR582 Hybrid Sight | + 4.8x Magnification + Dual Optics Toggle | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Hybrid Firepoint | + 4.3x Magnification + Dual Optics Toggle | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| SZ Vortex-90 | + 5.0x Magnification + Dual Optics Toggle | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| BPZ40 Hybrid | + 5.5x Magnification + Dual Optics Toggle | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Angel-40 4.8x | + 4.8x Magnification + Target Range Indicator + Dual Optics Toggle | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Thermo-Optic X9 | + 5.5x Magnification + Thermal Target Identification + Dual Optics Toggle | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Teplo Clear Shot | + 5.0x Magnification + Thermal Target Identification + Dual Optics Toggle | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| FTAC Charlie7 | + 7.5x Magnification | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| HMW-20 Optic | + 8.0x Magnification | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Luca Bandera Scope | + 3.7x Magnification + 8.0x Magnification Toggle | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Drexsom Prime-90 | + 7.5x Magnification + Thermal Target Identification | – Medium Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Ares Clear Shot | + 7.0x Magnification + Dual Optics Toggle | – Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| Luca Canis 4x Optic | + 4.0x Magnification | – Very Small Sniper Glint – Aim Down Sight Speed – Aim Walking Movement Speed |
| 1mW Quick Fire Laser | + Aim Down Sight Speed | |
| Accu-shot 5mW Laser | + Aim Down Sight Speed ‘+ Aiming Stability | – Laser Visible ADS |
| VLK LZR 7mW | + Aim Down Sight Speed + Aiming Stability + Sprint to Fire Speed | – Laser Visible ADS |
| Schlager ULO-66 Laser | + Hip Fire Accuracy + Hip Recoil Control | |
| STOVL Tac Laser | + Hip Recoil Control + Hip Fire Accuracy | |
| Hipshot L20 | + Hip Recoil Control + Hip Fire Accuracy | – Laser Visible at hip |
| Point-G3P 04 | + Hip Recoil Control + Hip Fire Accuracy + Sprint to Fire Speed | – Laser Visible at hip |
| FJX Ultrabeam XR | + Flashlight + Sprint to Fire Speed + Aim Walking Steadiness | – Flashlight Visible in ADS |
| EXF Solarflare | + Flashlight + Sprint to Fire Speed + Aim Stability | – Flashlight Visible in ADS |
| Header | Pros | Cons |
| Bruen Turaco 686mm | + Sound Suppression + Bullet Velocity + Damage Range + Recoil Control | – Aim Down Sight Speed – Movement Speed – Hip Recoil Control |
| FTAC FB20 | + Bullet Velocity + Damage Range + Recoil Control + Hip Fire Accuracy | – Aim Down Sight SPeed – Movement Speed – Hip Recoil Control |
| 18′ Bruen Guerilla | + Recoil Control + Bullet Velocity | – Movement Speed – Aim Down Sight Speed |
| 24.4′ Bruen S-620 | + Damage Range + Bullet Velocity + Hip Fire Accuracy + Recoil Control | – Aim Down Sight Speed – Hip Recoil Control – Movement Speed |
| 508mm Rear Guard | + Damage Range + Hip Fire Accuracy + Bullet Velocity | – Aim Down Sight Speed – Hip Recoil Control |
| 16.5′ Bruen S901 Barrel | + Movement Speed + Aim Down Sight Speed | – Bullet Velocity – Recoil Control |
| Header | Pros | Cons |
| Edge-47 Grip | + Aiming Idle Stability + Recoil Stabilization | – Aim Down Sight Speed |
| Demo Firm Grip | + Aiming Idle Stability + Hip Fire Accuracy + Recoil Stabilization | – Aim Down Sight Speed – Walking Speed |
| XTEN Gravedigger | + Aiming Idle Stability + Hip Fire Accuracy + Recoil Stabilization | – Aim Down Sight Speed – Walking Speed |
| FTAC Ripper 56 | + Aiming Idle Stability + Hip Fire Accuracy + Recoil Stabilization | – Aim Down Sight Speed – Walking Speed |
| Demo Cleanshot 40 | + Aiming Idle Stability + Hip Fire Accuracy + Recoil Stabilization | – Aim Down Sight Speed – Movement Speed |
| Demo IMP-44 Grip | + Aiming Idle Stability + Hip Fire Accuracy + Recoil Stabilization | – Aim Down Sight Speed – Walking Speed |
| FTAC Tiger Grip | + Aiming Idle Stability + Hip Fire Accuracy + Recoil Stabilitzation | – Walking Speed – Aim Down Sight Speed |
| FSS Sharkfin 90 | + Aiming Idle Stability | |
| Agent Grip | + Aiming Idle Stability + Hip Fire Accuracy | – Walking Speed |
| Bruen Sync Shot Grip | + Aiming Idle Stability + Hip Fire Accuracy | – Walking Speed |
| XTEN Drop Grip | + Aiming Idle Stability + Hip Fire Accuracy | – Walking Speed |
| Phase-3 Grip | + Aiming idle Stability + Hip Fire Accuracy + Recoil Stabilitzation | – Walking Speed – Aim Down Sight Speed |
| Merc Foregrip | + Hip Fire Accuracy + Recoil Steadiness + Hip Recoil Control + Aim Walking Steadiness | – Hip Walking Speed – Aim Down Sight Speed |
| Lockgrip Precision-40 | + Hip Fire Accuracy + Recoil Steadiness +Aim Walking Steadiness | – Aim Down Sight Speed |
| Hex-40 Grip | + Hip Fire Accuracy + Recoil Steadiness + Aim Walking Steadiness + Hip Recoil Control | – Aim Down Sight Speed – Hip Walking Speed |
| Schlager Tango | + Hip Fire Accuracy + Aim Walking Steadiness + Recoil Steadiness | – Aim Down Sight Speed |
| VX Pineapple | + Hip Fire Accuracy + Hip Recoil Control + Recoil Steadiness + Aim Walking Steadiness | – Hip Walking Speed – Aim Down Sight Speed |
| OP-X9 Foregrip | + Hip Fire Accuracy + Aim Walking Steadiness + Recoil Steadiness + Hip Recoil Control | – Hip Walking Speed – Aim Down Sight Speed |
| Operator Foregrip | + Hip Fire Accuracy + Aim Walking Steadiness + Hip Recoil Control | – Hip Walking Speed |
| TV Wrecker Grip | + Hip Fire Accuracy + Aim Walking Steadiness\ | |
| Bruen Tilt Grip | + Hip Fire Accuracy + Hip Recoil Control + Aim Walking Steadiness | – Hip Walking Speed |
| Cronen Grooveshot Grip | + Hip Fire Accuracy + Hip Recoil Control + Aim Walking Steadiness | – Hip Walking Speed |
| Bruen Warrior Grip | + Hip Fire Accuracy + Hip Recoil Control + Aim Walking Steadiness + Recoil Steadiness | – Hip Walking Speed – Aim Down Sight Speed |
| Bipod V9 Grip | + Bipod Mount + Recoil Steadiness | – Aim Down Sight Speed. |
| TL40 Fire Drake | + Underbarrel Grenade Launcher | – Aim Down Sight Speed – Movement Speed |
| Level Aim Bipod | + Bipod Mount | – Aim Down Sight Speed |
| Cornerstone Bipod | + Bipod Mount | – Aim Walking Movement Speed |
| XTEN Stable Shot | + Bipod Mount | – Sprint Speed |
| Header | Pros | Cons |
| Dark KX30 | + Muzzle Flash Concealment + Recoil Steadiness | – Aim Down Sight Speed – Aiming Stability |
| VLK Koloss Flash Hider | + Muzzle Flash Concealment + Recoil Steadiness + Recoil Stabilization | – Aim Down Sight Speed – Aiming Stability |
| Broadhead-3DP | + Sound Suppression + Recoil Smoothness + Recoil Control | – Aim Down Sight Speed – Damage Range – Aim Walking Speed – Aiming Stability |
| Silentfire XG6 | + Sound Suppression + Bullet Velocity + Recoil Smoothness + Recoil Control | – Aim Down Sight Speed – Aim Walking Speed – Aiming Stability |
| Echoline GS-X | + Sound Suppression + Recoil Smoothness | – Damage Range |
| Harbinger D20 | + Sound Suppression + Bullet Velocity + Damage Range + Recoil Smoothness | – Aim Down Sight Speed – Aiming Stability – Aim Walking Speed |
| Echoless-80 | + Sound Suppression + Bullet Velocity + Damage Range + Recoil Smoothness | – Aim Down Sight Speed – Aiming Stability |
| FSS Covert V | + Sound Suppression + Bullet Velocity + Recoil Smoothness | – Aim Down Sight Speed – Aiming Stability |
| Gauge-9 Mono | + Sound Suppression + Bullet Velocity + Recoil Smoothness + Recoil Control | – Aim Down Sight Speed – Aiming Stability – Aim Walking Speed – Damage Range |
| RF Crown 50 | + Horizontal Recoil Control + Vertical Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| Komodo Heavy | + Horizontal Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| XTen Ported 290 | + Vertical Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| Cronen OP44 | + Vertical Recoil Control + Horizontal Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| FTAC Castle Comp | + Horizontal Recoil Control + Vertical Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| Xten Havoc 90 | + Horizontal Recoil Control + Vertical Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| Sakin Tread-40 | + Vertical Recoil Control + Horizontal Recoil Control | – Aim Down Sight Speed – Aiming Stability |
| C400 Door Knocker | + Melee Damage | – Aim Down Sight Speed |
| Header | Pros | Cons |
| 5.56 Frangible | + Inflict Wounding Effect | – Bullet Penetration – Damage Range |
| 5.56 Armor Piercing | + Bullet Penetration + Vehicle Damage | – Bullet Velocity |
| 5.56 Overpressured +P | + Target Flinch | – Recoil Control |
| 5.56 High Velocity | + Bullet Velocity | – Damage Range |
| Header | Pros | Cons |
| Single Tap Mod | + High Grain Ammunition + Movement Speed + Aim Down Sight Speed + Sprint to Fire Speed | – Magazine Ammo Capacity – Full Auto |
| 42 Round Mag (5.56) | + Magazine Ammo Capacity | – Movement Speed – Aim Down Sight Speed – Reload Quickness – Sprint to Fire Speed |
| Header | Pros | Cons |
| Bruen G305 Grip Wrap | + Flinch Resistance | – Aim Walking Movement Speed |
| STIP-40 Grip | + Recoil Control | – Aiming Stability |
| Bruen Q900 Grip | + Sprint to Fire Speed + Aim Down Sight Speed | – Recoil Control |
| Header | Pros | Cons |
| Bruen MX9 Stock | ||
| Bruen HCR 56 Stock | + Recoil Control | – Aim Down Sight Speed – Crouch Movement Speed |
| Header | Pros | Cons |
| Schlager TTF3 Riser | + Ammo Reserve | – Aim Down Sight Speed |
| Bruen TS-30 Comb | + Aiming Stability + Recoil Steadiness | – Movement Speed – Aim Down Sight Speed |
| FTAC C11 Riser | + Sprint to Fire Speed + Aim Down SIght Speed | – Aiming Stability – Aim Walking Speed |
Level up the STB 556 to unlock the following attachments, weapons, and features:
| Level 1 | – | Level 16 | TL40 Fire Drake |
| Level 2 | 18′ Bruen Guerilla | Level 17 | Single Tap Mod |
| Level 3 | Schlager TTF3 Riser | Level 18 | Harbinger D20 |
| Level 4 | Sakin Tread-40 | Level 19 | Bruen HCR 56 Stock |
| Level 5 | VLK LZR 7mW | Level 20 | HCR 56 |
| Level 6 | Schlager Night View | Level 21 | Weapon Tuning |
| Level 7 | 5.56 High Velocity | Level 22 | – |
| Level 8 | XTEN Drop Grip | Level 23 | – |
| Level 9 | 42 Round Grip | Level 24 | – |
| Level 10 | Stip-40 Grip | Level 25 | – |
| Level 11 | 508mm Rear Guard | Level 26 | – |
| Level 12 | Bruen MX9 Stock | Level 27 | – |
| Level 13 | MX9 | Level 28 | – |
| Level 14 | 24.4′ Bruen S-620 | Level 29 | – |
| Level 15 | Dark KX30 | Level 30 | – |
| Weapon Lists | ||
|---|---|---|
| Assault Rifles | Battle Rifles | SMGs |
| Shotguns | LMGs | Marksman Rifles |
| Sniper Rifles | Handguns | Launchers |
| Melee Weapons | – | – |
| Equipment Lists | ||
| Tacticals | Lethals | Field Upgrades |
