Our guide features the ultimate BAS-B class, a standout rifle in Modern Warfare 3 known for its strength and flexibility. Learn how to create the best BAS-B MW3 loadout for your gameplay.
Modern Warfare 3 is the latest hit, drawing gamers in. It boasts a range of classic and new weapons, including the increasingly popular BAS-B.
Based on the MCX Spear, the BAS-B is a hard-hitting yet surprisingly accurate weapon that can easily be controlled in full-auto even at long range. This makes it one of the guns in Modern Warfare 3 with it dominating across a wide range of maps and modes.
Here is a complete guide to making the best BAS-B loadout in MW3, including class setup, attachments, and perks.
Contents
- Best BAS-B MW3 loadout
- BAS-B MW3 loadout: Perks & Equipment
- How to unlock the BAS-B in Modern Warfare 3
- Best BAS-B alternative in Modern Warfare 3
Best BAS-B MW3 loadout
- Muzzle: VT-7 Spiritfire Suppressor L
- Barrel: Light 9″ Bruen Wyvern Short
- Laser: FSS OLE-V Laser
- Optic: Slate Reflector
- Magazine: 30 Round Mag
The BAS-B is much more accurate than you may expect given that it’s a battle rifle. As a result, you don’t really need any recoil management and can opt for the VT-7 Spitfire Suppressor L to keep you firing from stealth.
Most of the other attachments should be used to improve mobility and handling, like the Light 9″ Bruen Wyvern Short Barrel and FSS OLE-V Laser. These greatly speed up the BAS-B and make it feel much more responsive which is necessary given how fast-paced multiplayer can be this year.
Something to note about the BAS-B is that its relatively low fire rate can make missed shots especially costly. Due to this, it’s highly recommended to use a clean optic like the Slate Reflector which makes tracking enemies much easier.
Another con of this rifle is that its magazine only holds 20 rounds by default which will leave you constantly reloading. Thankfully, this is easily solved by equipping the 30 Round Mag, providing 50% more shots per mag.

The BAS-B is an accurate yet powerful battle rifle in Modern Warfare 3.
BAS-B MW3 loadout: Perks & Equipment
- Vest: CCT Comms Vest
- Gloves: Marksman Gloves
- Boots Stalker Boots
- Gear: Mission Control Comlink
- Gear: Mag Holster
The CCT Comms Vest is an interesting prospect, as it excels in gaining intel and marking enemies at the expense of lethal and tactical equipment. This works well with the aggressive playstyle suited to our BAS-B build.
For Gloves, the Marksman Gloves work well practically negating all flinch and idle sway while aimed in. Since battle rifles in MW3 suffer from low aiming stability this is a great option. It partners well with the Stalker Boots which also improve the rifle’s ADS by noticeably improving strafe speed.
Mag Holster is an obvious choice for Gear given the BAS-B has a rather slow reload. This is especially true with the 30 Round Mag equipped which results in a full reload taking well over 3 seconds. Finally, Misson Control Comlink makes streaks cheaper to get giving you a better chance of acquiring either powerful killstreaks or scorestreaks.
How to unlock the BAS-B in Modern Warfare 3
Players can unlock the BAS-B by reaching Level 17 in Modern Warfare 3. Alternatively, successfully extracting a BAS-B in Zombies will also unlock the battle rifle.
Best BAS-B alternative in Modern Warfare 3
Despite being an LMG, the Holger 26 shares a lot in common with the BAS-B and is the next closest weapon to it. Both have comparable TTKs, handling, and even fire rates but the Holger hits a little less hard, especially up close.