Modern Warfare 2 (MW2)

STB 556 Best Loadout and Attachments

This is the best class build for the STB 556, a type of Assault Rifle in Call of Duty: Modern Warfare 2 (MW2). Check here to learn how to play the best loadout for the STB 556, including the best attachments and recommended Perk Package.

STB 556 Overview and Stats

Weapon Overview

STB 556

The STB 556 is a closed-bolt rifle built around modularity and accuracy, ideal for mid to long-range fights.
Basic Info
Platform: Bruen Bullpup
Weapon Class: Assault Rifle
Max Level: 21
Magazine Capacity: 30
Reserve Ammo: 60
Fire Modes: TBA
How to Unlock Unlocked at Level 41.

Weapon Stats

Damage Modern Warfare 2 (MW2) - Damage
Fire Rate Modern Warfare 2 (MW2) - Fire Rate
Range Modern Warfare 2 (MW2) - Range
Accuracy Modern Warfare 2 (MW2) - Accuracy
Recoil Control Modern Warfare 2 (MW2) - Recoil Control
Mobility Modern Warfare 2 (MW2) - Mobility
Handling Modern Warfare 2 (MW2) - Handling

STB 556 Best Loadout and Attachments

Best STB 556 Class Build

Weapon Loadout
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

Best STB 556 Attachment Loadout

Barrel Bruen Turaco 686mm
Rear Grip Bruen Q900 Grip
Laser STOVL Tac Laser
Underbarrel FSS Sharkfin 90FSS Sharkfin 90
Comb FTAC C11 Riser

How to Play

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.

STB 556 Weapon Progression

Progression Tree: All Unlockables

All Unlockables
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.

Guns Unlocked by Leveling the STB 556

All Gun Unlocks
MX9MX9
Unlocked by leveling the STB 556 to Level 13.
HCR 56HCR 56
Unlocked by leveling the STB 556 to Level 20.

All Compatible STB 556 Attachments

STB 556 Barrels

Bruen Turaco 686mm FTac FB20 18” Bruen Guerilla
24.4” Bruen S-620 508MM Rear Guard 16.5” Bruen S901

STB 556 Magazines

Single Tap Mod 42 Round Mag

STB 556 Stocks

Bruen MX9 Stock Bruen HCR 56 Stock

STB 556 Rear Grips

Bruen G305 Grip Wrap STIP-40 Grip Bruen Q900 Grip

STB 556 Muzzles

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

STB 556 Underbarrels

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

STB 556 Ammunition

5.56 Frangible 5.56 Armor Piercing 5.56 Overpressured +P
5.56 High Velocity

STB 556 Lasers

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

STB 556 Optics

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

STB 556 Combs

Schlager TTF3 Riser Bruen TS-30 Comb FTAC C11 Riser

STB 556 Camos & Blueprints

All STB 556 Camos

Camo Challenge Lv. Unlock
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

All STB 556 Blueprints

This Weapon currently doesn't have any Blueprints.

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