COD MW2: BEST STB 556 Loadouts [Trial & Tested]

After 120+ hours in MW2, here are my preferred STB 556 Loadouts.

STB 556 is one of the best assault rifles in COD Modern Warfare 2, with easy-to-unlock loadout builds and powerful class setup and equipment. The best part about the assault rifle is definitely its low recoil and great range. The STB 556’s strength lies in its recoil rate that beats even the marksman rifles you see in COD Modern Warfare 2.

Key Takeaways
  • STB-556 is an Assault Rifles in Call Of Duty Warzone 2.0 that excels in almost every aspect: damage, range, speed, and more.
  • The attachments for making STB-556 for maximum damage and low recoil are:
    • Harbringer D20, 18” Guerrilla Barrel, VX Under Barrel, F Tac C11 Riser Comb, and S Z Optic.
  • The perks for STB-556 are Overkill, Double Time, Fast Hands, and Birds Eye.
  • The attachments for making STB-556 for range and precision loadouts are:
    • Echoline GS-X Muzzle, 24.4” Bruen S-620 Barrel, FSS Sharkfin 90 Under Barrel, F TAC Comb, and Cronen Mini Red Dot Optic.
  • The perks for the second loadout of STB-556 are Scavenger, Bomb Squad, Hardline, and Quick Fix.

Modern Warfare 2 Best STB 556 Loadouts

Below, you will see some of the best loadouts for STB 556 in COD Modern Warfare 2, along with the optimal class setup and equipment for the assault rifle:

LoadoutMuzzle BarrelUnder BarrelCombOpticBase PerkBonus PerkUltimate PerkField Upgrade
Max Damage & Recoil
Harbringer D20
18” Bruen Guerrilla VX PineappleF Tac C11 Riser S Z Holotherm Overkill, Double TimeFast Hands Birds Eye Dead Silence
Range & Precision
Harbinger D20 Or Echoline GS-X 24.4” Bruen S- 620 VX Pineapple Or FSS Sharkfin 90 F TAC C 11 Riser Cronen Mini Red Dot Scavenger, Bomb Squad HardlineQuickfixTrophy System Or Portable Radar
Base Perk

Max Damage & Recoil STB 556 Loadout  

Showcasing the STB-556
Warzone 2.0: STB-556 (Image Credit: eXputer)

The first loadout will be quite heavy in terms of attachment but will also provide you with maximum damage. I have also kept in mind to use attachments that will further boost the recoil rate of the gun while increasing the range.

Furthermore, I will also be focusing on factors like accuracy and hip-fire rate in the attachments I will be using for the STB 556.

Below are the details of the loadout. 

  •  Muzzle: Harbringer D20 
  •  Barrel: 18” Bruen Guerrilla 
  •  Under Barrel: VX Pineapple 
  •  Comb: F Tac C11 Riser 
  •  Optic: S Z Holotherm 
  • Improved ADS Recoil Control
  • Reduced Hip Fire Bullet Spread
  • Faster TTK
  • High Muzzle Velocity
  • Challenging Aiming Stability over long range 
  • Reduced Aim Walking Speed

While the attachments I have used might add a bit of weight to your assault rifle, it is definitely worth it, as it will ultimately improve your stats, including damage, recoil, range, and accuracy.

Best Class Setup [Perks And Equipment]

Call of Duty MW2 overkill
Overkill Perk [Image by eXputer]
Next, I will be discussing the perks and equipment for STB 556. To formulate the best class setup, I will keep factors like Sprint Speed, Reload Time, and overall mobility in mind.

Since I have used pretty heavy attachments for the loadout, I will be making up for it in the perks.

Following are the perks and equipment I use for the loadout. 

  •  Base Perk 1: Overkill 
  •  Base Perk 2: Double Time 
  •  Bonus Perk: Fast Hands 
  •  Ultimate Perk: Birds Eye 
  •  Lethal Equipment: Frag Grenade 
  •  Tactical Equipment: Flash Grenade  
  •  Field Upgrade: Dead Silence 

Best Secondary Weapon For STB 556 

For the secondary weapon, I will be using Best SMG and shotguns. The secondary weapon depends entirely on your choice and the range you want to excel at.

In case you want to succeed in close quarters, then Lockwood 300 Loadout is a good option. However, if you feel like your battle is heavily focused on the long-range, Signal 50 is the one to go for. 

STB 556 Range & Precision Loadout  

STB 556 Warzone 2 Season 3 weapon changes.
STB 556 [Screenshot by eXputer]
The second loadout will focus more on the range and the damage of STB 556. Furthermore, I will also be focusing on factors like precision, another return of the STB 556, one of the best weapons in COD Modern Warfare 2.

Following are the details of the loadout: 

  •  Muzzle: Harbinger D20 Or Echoline GS-X 
  •  Barrel: 24.4” Bruen S- 620 
  •  Under Barrel: VX Pineapple Or FSS Sharkfin 90 
  •  Comb: F TAC C 11 Riser 
  •  Optic: Cronen Mini Red Dot 

For the second loadout, I will be keeping the range of STB 556 in mind. Also, I will be looking to choose attachments that will further boost its performance in that range.

Best Class Setup [Perks And Attachments] 

Call of Duty MW2 hardline
Hardline Perk [Image Credit: eXputer]
Now, for the perks of the second loadout, I will be focusing heavily on the stealth factor while maintaining the running and gunning ability of STB 556.

Furthermore, I will be looking to improve the ammunition of your assault rifle and increase its damage range. For equipment, on the other hand, you will be looking for some extra kills and better HP.

Following are the perks, equipment, and field upgrades I used for the second loadout of STB 556. 

  •  Base Perk 1: Scavenger 
  •  Base Perk 2: Bomb Squad 
  •  Bonus Perk: Hardline 
  •  Ultimate Perk: Quick Fix 
  •  Lethal Equipment: Semtex 
  •  Tactical Equipment: Stun Grenade 
  •  Field Upgrade: Trophy System Or Portable Radar 

Best Secondary Weapon 

For the secondary weapon, I highly recommend using the X13 auto due to its power and synergy with assault rifles. X13 auto can help you get out of close quarters since your assault rifle won’t be able to help you in tighter spaces. 

My Verdict On STB 556

Huzaifa Malik Steam Profile
My Steam Profile

I spent 100+ hours in Call of Duty Modern Warfare 3, and a significant amount of time went into checking out different attachments for BAS B and testing them out on the battlefield. Through many trials and errors, I came up with the above-mentioned loadouts. You can start with my recommended attachments and make some slight alterations according to your playstyle for the best output.

With this, the detailed guide on the STB 556 and its best loadout builds, class setup, and equipment in COD Modern Warfare 2 comes to a conclusion. While you are at it, I highly recommend checking out the guide on the best assault rifles in MW 2 to check out other weapons besides STB 556.

Also, check out the guide on how to get burger town skin in COD Modern Warfare 2 and the vault edition content of the game. In case you are looking to increase your prestige, make sure to check out the guide on how to prestige in COD Modern Warfare 2.

There is also a detailed guide on unlocking polyatomic camo that you should check out. Furthermore, I recommend checking out Huzaifah Durrai’s review of Modern Warfare 3 for an insightful analysis.


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Moiz Banoori is the brains behind eXputer. Having worked at various Video Game sites, with 8 years of Content Writing Experience and a Journalism Degree at hand, he presently monitors teams, creates strategies, and publishes qualified pieces through his aptitude at eXputer. Feel free to get in touch with him on his gaming profile at Steam and PSN.

Experience: 8+ Years || Manages Teams, Creates Strategies, and Publishes Guides on eXputer

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