This is the best class build for the STB 556, a type of Assault Rifle in Call of Duty: Modern Warfare 3 (MW3). Check here to learn how to play the best loadout for the STB 556, including the best attachments and recommended Perk Package.
The STB 556 is a closed-bolt rifle built around modularity and accuracy, ideal for mid to long-range fights. | |||||
Basic Info | |||||
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Platform: Bruen Bullpup Weapon Class: Assault Rifle Max Level: 21 |
Magazine Capacity: 30 Reserve Ammo: 60 |
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How to Unlock | Unlocked at Level 41. |
Weapon Loadout | |
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Primary | STB 556 |
Secondary | X13 Auto |
Tactical | Stun Grenade |
Lethal | Semtex |
Base Perk 1 | Double Time |
Base Perk 2 | Scavenger |
Bonus Perk | Hardline |
Ultimate Perk | Ghost |
Field Upgrade | Battle Rage |
Barrel | Bruen Turaco 686mm |
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Rear Grip | Bruen Q900 Grip |
Laser | STOVL Tac Laser |
Underbarrel | FSS Sharkfin 90 |
Comb | FTAC C11 Riser |
This STB 556 loadout is best used for aggressive playstyles, making it a standard but powerful assault rifle setup for any small-scale game mode Given the already decent recoil control of the STB 556, equipping the Bruen Turaco 686MM barrel and FSS Sharkfin 90 underbarrel will result in incereased damage and accurate shots..
Players running this loadout are recommended to lock out enemies in their respective spawn areas by pushing past enemy lines. With the Double Time and Hardline perk equipped, this playstyle is effective for gaining map control as well as earning early killstreaks.
All Unlockables | ||
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18” Bruen Guerilla Barrel (Level 3) |
SAKIN Tread-40 Muzzle (Level 4) |
Schlager TTF3 Riser Comb (Level 4) |
VLK LZR 7MW Laser (Level 5) |
Schlager Night View Optic (Level 6) |
5.56 High Velocity Ammunition (Level 7) |
XTEN Drop Grip Underbarrel (Level 8) |
STIP-40 Grip Rear Grip (Level 10) |
508MM Rear Guard Barrel (Level 11) |
24.4” Bruen S-620 Barrel (Level 14) |
Dark KX30 Muzzle (Level 15) |
TL40 Fire Drake Underbarrel (Level 16) |
Single Tap Mod Magazine (Level 17) |
Harbinger D20 Muzzle (Level 18) |
42 Round Mag Magazine (Level 19) |
Weapon Tuning Feature Unlock (Level 21) |
NOTE: Newly acquired weapons will have locked attachment slots at Level 1. Category Unlocks are upgrades that unlock these attachment slots for use.
All Gun Unlocks | |
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MX9
Unlocked by leveling the STB 556 to Level 13. |
HCR 56
Unlocked by leveling the STB 556 to Level 20. |
Bruen Turaco 686mm | FTac FB20 | 18” Bruen Guerilla |
24.4” Bruen S-620 | 508MM Rear Guard | 16.5” Bruen S901 |
Single Tap Mod | 42 Round Mag |
Bruen MX9 Stock | Bruen HCR 56 Stock |
Bruen G305 Grip Wrap | STIP-40 Grip | Bruen Q900 Grip |
Corvus Slash Gen. 2 | Dark KX30 | VLK Koloss Flash Hider |
Broadhead-3DP | Silentfire XG6 | Echoline GS-X |
Harbinger D20 | Echoless-80 | FSS Covert V |
Gauge-9 Mono | RF Crown 50 | Komodo Heavy |
XTen Ported 290 | Cronen OP44 | FTac Castle Comp |
XTen Havoc 90 | SAKIN Tread-40 | C400 Door Knocker |
Edge-47 Grip | Demo Firm Grip | XTEN Gravedigger |
FTac Ripper 56 | Demo Cleanshot 40 | Demo Imp-44 Grip |
FTac Tiger Grip | FSS Sharkfin 90 | Agent Grip |
Bruen Sync Shot Grip | XTEN Drop Grip | Phase-3 Grip |
Merc Foregrip | Lockgrip Precision-40 | Hex-40 Grip |
Schlager Tango | VX Pineapple | OP-X9 Foregrip |
Operator Foregrip | TV Wrecker Grip | Bruen Tilt Grip |
Cronen Grooveshot Grip | Bruen Warrior Grip | Bipod V9 Grip |
TL40 Fire Drake |
5.56 Frangible | 5.56 Armor Piercing | 5.56 Overpressured +P |
5.56 High Velocity |
1MW Quick Fire Laser | Accu-Shot 5MW Laser | VLK LZR 7MW |
Schlager Ulo-66 Laser | STOVL Tac Laser | Hipshot L20 |
Point-G3P 04 | FJX Ultrabeam XR | EXF Solarflare |
Slimline Pro | SZ Mini | Cronen Mini Red Dot |
Cronen Mini Pro | SZ Sigma-IV Optic | SZ Minitac-40 |
XRK On-Point Optic | DF105 Reflex Sight | Monocle CT90 |
Corvus SOL-76 | SZ Recharge-DX | SZ SRO-7 |
Corio RE-X Pro | Corio Enforcer Optic | SZ Lonewolf Optic |
Kazan-Holo | Corvus Downrange-00 | SZ Holotherm |
XTEN Angel-40 | VLK 4.0 Optic | Schlager 4X |
Forge Tac Delta 4 | Cronen Zero-P Optic | SZ Bullseye Optic |
SZ Aggressor-IR Optic | Schlager Night View | VX350 Thermal Optic |
Teplo-OP3 Scope | DR582 Hybrid Sight | Hybrid Firepoint |
SZ Vortex-90 | BPZ40 Hybrid | Angel-40 4.8x |
Thermo-Optic X9 | Teplo Clear Shot | FTac Charlie7 |
HMW-20 Optic | Luca Bandera Scope | Drexsom Prime-90 |
ARES Clear Shot | Luca Canis 4x Optic |
Schlager TTF3 Riser | Bruen TS-30 Comb | FTAC C11 Riser |
Camo | Challenge | Lv. Unlock |
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Sponge Tac | Get 50 kills with the STB 556 | 2 |
Black Top | Get 20 kills while mounted with the STB 556 | 8 |
Slate | Get 10 double kills with the STB 556 | 14 |
Neon Pink | Get 30 kills while crouched with the STB 556 | 20 |
Gold STB 556 | Get 3 kills without dying 10 times with the STB 556 | N/A |
This Weapon currently doesn’t have any Blueprints. |