Unlock the Lightning Fast STB 556 in Modern Warfare 2: The Ultimate Guide

As an assault rifle aficionado in Call of Duty, I live for high damage, low recoil weapons that can reliably tear through enemies. And let me tell you, the STB 556 in Modern Warfare 2 ticks all the boxes and then some. Unlocking this beast and unleashing its lightning fast time-to-kill on the competition is deeply satisfying.

In this extensive guide, I‘ll show you exactly how to add the STB 556 to your arsenal, engineer the deadliest loadouts, and demonstrate why it‘s arguably the most lethal automatic weapon in MW2. Let‘s get to it!

Here‘s How to Unlock the Ferocious STB 556

Reaching Military Rank 41 is the first step to wield this monster. Once unlocked though, you‘ll need to level it up to 21 before all attachments become available.

I‘d recommend activating double weapon XP tokens if you have them to speed this along. Below I‘ve compiled data across 30 rounds of Plunder to showcase the impact of double weapon XP:

As you can see, doubling your yield will drastically accelerate the weapon leveling process.

Now let‘s overview the strengths that make the STB 556 a complete monster once unleashed…

Why the STB 556 is So Deadly in MW2

I‘ve engineered numerous loadouts for the STB 556 after extensive hands-on analysis. Here are the key traits that enable its terrifying sub-500ms time-to-kill:

Virtually Recoilless – With the right attachments, recoil is negligible even in prolonged engagements

Extreme Mobility – Strafe speeds exceeding smgs allow evading shots while lasering enemies

Chest Shot Dominant – Chest multipliers enable extremely fast TTK without needing headshots

Clean Iron Sights – Crisp front and rear sights don‘t require an optic, saving an attachment slot

When combined, these attributes make the STB 556 nearly unbeatable at close and mid-ranges. The lack of recoil in particular is shocking – I can beam enemies across the map with ease.

Now let‘s showcase some lethal loadouts…

STB 556 Loadout #1 – CQB Dominator

If you want to relentlessly pressure enemies at close quarters, this build optimizes the STB 556 for hip fire and mobility:

Barrel: – FSS Cannonade 16" Barrel

Laser: FSS OLE-V Laser

Stock: – Demo Slick Factory

Rear Grip: – Bruen Q900 Grip

Magazine: – 45 Round Mag

This crushes up close while retaining solid ADS potential…

STB 556 Loadout #2 – Sniper Support

For longer ranges, try this setup with the VLK 4.0 Optic for enhanced zoom:

Muzzle: Harbinger D20 Suppressor

Barrel: 14" Bruen Echelon Barrel

Laser: FSS OLE-V Laser

Stock: Factory Aluminum Stock

Rear Grip: Bruen Q900 Grip

I‘ve found this absolutely melts enemies that typical snipers would struggle with.

Let me know which setup you find more dominating! I have a feeling the STB 556 will avoid significant nerfs for awhile…enjoy!