Call of Duty: Black Ops 6 has a wide selection of weapons to use in multiplayer and Zombies. The first SMG you'll unlock is the C9, a reprised version of the MP5 known for its high accuracy and moderate fire rate. It's a jack of all trades of the SMG category, making it a great beginner weapon.

Today, we will be covering two great builds for the C9 that make it an excellent option for multiplayer and Zombies. Our first build is a standard five-attachment configuration for multiplayer, while the second build is ideal for Gunfighter setups and Zombies play.

Stealth C9 Build

C9 Build
Attachment	Pros And Cons	Advanced Stats
Suppressor (Muzzle)	No Mini-Map Firing Ping	-100% Mini-Map Ping Duration
Reinforced Barrel (Barrel)	Damage Range Bullet Velocity	15% Effective Range 30% Bullet Velocity
Ranger Foregrip (Underbarrel)	Horizontal Recoil Control Sprinting Movement Speed	-16% Horizontal Recoil Control 7% Sprint Speed
Flip Mag (Magazine)	Reload Quickness	13% Reload Speed (Every Other Reload)
Ergonomic Grip (Rear Grip)	Aim Down Sights Speed Slide to Fire Speed	17% ADS Speed 50% Slide to Fire Speed

If you want to use the C9 up close, you'll want to equip a Suppressor to stay off enemy radar. The weapon has solid range for an SMG, but we can improve it with the Reinforced Barrel. This doesn't give as much range as your typical Long Barrel, but this gives a whopping 30% bullet velocity buff, which is noticeably more than Overpressured Rounds. The C9's base projectile speed is absurdly slow, so buffing it should help with mid-range TTK consistency.

Speed is crucial on an SMG, so we suggest using the Ranger Foregrip for more sprint speed and an Ergonomic Grip to greatly improve your ADS speed. It also reduces your slide-to-fire delay, ideal for flicking on enemies mid-slide or dive. We finish the build with a Flip Mag to offset the C9's fairly slow reload.

Loadout Recommendations

Perks
Specialty	Recon
Column One	Ghost, Ninja
Column Two	Forward Intel
Column Three	Double Time
Equipment
Wildcard	Perk Greed
Lethal	Preference
Tactical	Stim
Field Upgrade	Sleeper Agent

Stealth loadouts work best with a Recon Combat Specialty. Ghost and Ninja are fantastic for any suppressed weapon, hiding you from enemy radar while muffling your footstep audio. Forward Intel will then increase the size of your minimap to make it easier to track enemy targets. Throw on Double Time for more tactical sprint uptime or any other perk that suits your playstyle.

This perk configuration requires Perk Greed. Consider unlocking it with your Prestige unlock token.

As for equipment, our only main recommendation is Stims to heal yourself after a duel. Everything else is down to preference. If you play 6v6 respawn modes and want to go on killstreaks, consider Sleeper Agent or War Cry.

Gunfighter C9 Build

C9 Build
Attachment	Pros And Cons	Advanced Stats
Suppressor (Muzzle)	No Mini-Map Ping	N/A
Long Barrel (Barrel)	Damage Range	30% Effective Range
Ranger Foregrip (Underbarrel)	Horizontal Recoil Control Sprinting Movement Speed	-15% Horizontal Recoil Control 6% Sprint Speed
Flip Mag (Magazine)	Reload Quickness	13% Reload Speed (Every Other Reload)
Ergonomic Grip (Rear Grip)	Aim Down Sights Speed Slide to Fire Speed	17% ADS Speed -50% Slide to Fire Speed
Infiltrator Stock (Stock)	Aim Walking Movement Speed	18% Aim Walking Movement Speed
Strelok Laser (Laser)	Hipfire to ADS Accuracy -Laser Visible in ADS	N/A
Overpressured Rounds (Fire Mods)	Bullet Velocity	-19% Recoil Gun Kick -10% Horizontal Recoil -20% Vertical Recoil

This is an upgraded variant of the last build. We use the Gunfighter Wildcard to install three extra attachments. We run Overpressured Rounds to greatly improve the weapon's bullet velocity, allowing us to drop the Reinforced Barrel for a Long Barrel, further improving the C9's range. We then throw on the Strelok Laser for better accuracy while in the ADS animation.

Your last attachment can either be a stock or an optic. We recommend the Infiltrator Stock to greatly improve your ADS strafe speed. If you don't like the iron sights on the C9, feel free to use any optic attachment instead.

Loadout Recommendations

Perks
Specialty	Recon
Column One	Ghost, Ninja
Column Two	Forward Intel
Column Three	Double Time
Equipment
Wildcard	Perk Greed
Lethal	Preference
Tactical	Stim
Field Upgrade	Sleeper Agent

We recommend the same loadout as before. Recon specialty is great for stealth gameplay, notably when you run Ghost to hide your minimap presence. Run two other blue perks to trigger your set bonus. Everything else is down to preference.