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There are six submachine guns in Call of Duty: Modern Warfare 3, and none of them are considered too powerful when compared to the other weapon classes in multiplayer. However, with the right loadout, you can make guns like WSP-Swarm extremely capable in MW3.

The WSP-Swarm is not to be confused with the WSP-9 SMG or the WSP-Stinger secondary pistol. Although, it is very similar to those weapons in size, behavior, and looks. The Swarm has a high fire rate, moderate damage, and some bouncy recoil that can make using it a bit of a chore. With a strong set of attachments, though, all of these problems disappear and you’re left with quite an enjoyable gun to use in multiplayer.

To see the best loadout for the WSP-Swarm in MW3, check out the guide below.

Best WSP-Swarm loadout in MW3

  • Barrel: WSP Ortac Long Barrel
  • Optic: MK. 3 Reflector
  • Stock: FSS Fortress Heavy Stock
  • Underbarrel: FTAC MSP-98 Handstop
  • Magazine: 40 Round Mag
The best WSP-Swarm loadout in MW3
Image via Activision

While this loadout might look a little strange at first, I suggest you try it out before making a final opinion. The set of attachments makes the WSP-Swarm more viable at longer ranges while keeping it lethal at close range. The 40 Round Mag is necessary to accommodate for the Swarm’s high fire rate while the MK. 3 Reflector is my preference due to the SMG’s clunky iron sights.

The rest of the attachments either boost recoil control and gun kick control or overall mobility to make for a well-rounded loadout. The FTAC MSP-98 Handstop accomplishes both of those goals while the WSP Ortac Long Barrel and FSS Fortress Heavy Stock boost damage range/recoil control.

Best Class Setup for the WSP-Swarm in MW3

Finally, I have the rest of the loadout elements for you to equip alongside the recommended attachments. This includes the best perks, equipment, and Field Upgrade for the WSP-Swarm in MW3 multiplayer.

  • Gloves: Assault Gloves
  • Boots: Tactical Pads
  • Gear: Tac Mask/EOD Padding/Ghost T/V Camo


  • Lethal: Semtex Grenade
  • Tactical: Stim

Field Upgrade

  • Dead Silence

Related: How to unlock the Stim in MW3

And that does it for the best WSP-Swarm loadout in MW3. The SMG can be a ton of fun with this loadout and if you play to its strengths.