With Season 5 of Modern Warfare & Warzone is the ISO SMG. It is unlocked as a free weapon available as part of the Season 5 Battlepass.
Here’s what you’ll find below:
ISO Infographics
Weapon Guide
Recoil Study
ISO Suggested Loadouts
Camouflage Requirements
Table of ISO Attachment Unlock Levels
The ISO is available at Tier 15 in the Season 5 Battlepass and it has a weapon max level of 55. Be sure to see our Weapon guide for info on how various attachments help with recoil control for the ISO SMG in Modern Warfare.
Infographics
Infographic #1 – General overview of the ISO SMG with stats, attachment unlock levels, loadouts and camo requirements
Note – The Camo Challenges for the ISO are the same requirements needed for Handguns, not typically SMG’s, so you will notice you will be leveling up the Camo’s much quicker, than normal.
Infographic #2 – Damage Comparison at different ranges for the ISO
Infographic #3 – ISO Loadouts, Advanced Stats & Specialized attachments
Infographic #4 – ISO attachments for faster ADS Speeds and better Recoil Control
Weapon Guide
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Recoil Study
Here’s the Recoil study of the ISO Base Ammo with 20 Rounds at 18m. It kicks mostly straight up with a little drift to the Right.
ISO Loadouts
Loadout 1 – Accuracy
Loadout 2 – Balanced Build
Loadout 3 – StealthSetup
Loadout 4 – Mobility Setup
Camouflage Requirements
These are the requirements if you’re looking to max each camo pattern. Complete all of the following to unlock the Gold Camo for the ISO.
For one reason or another, the Camo Challenge is either bugged, or they purposely made the challenges easier by giving it the same requirements as the Handguns to unlock.
- Spray Paint – 250 Kills
- Woodland – 50 Headshot Kills
- Digital – 40 Crouching Kills
- Dragon – 30 Hipfire Kills
- Splinter – 30 Longshot Kills
- Topo – 25 Double Kills
- Tiger – 110 Kills w/ 5 Attachments
- Stripes – 25 Kills Shortly after Reload
- Reptile – 75 Kills with 0 Attachments
- Skulls – 25 Kill 3 Enemies w/o Dying
Keep in mind you can only complete the objective after unlocking the pattern.
ISO Attachment Unlock Levels
Here is the Table of the ISO Attachment Unlock Levels.
| Muzzle – | Unlock Level | Attachment | Attachment Type | Unlock Level | |
| Flash Guard | 2 | Flash Guard | Muzzle | 2 | |
| Tactical Suppressor | 10 | Aim-Op Reflex Sight | Optic | 3 | |
| Muzzle Brake | 12 | Frangible Disabling | Perk | 4 | |
| Breacher Device | 16 | Corp Combat Holo Sight | Optic | 5 | |
| Lightweight Suppressor | 29 | Commando Foregrip | Underbarrel | 6 | |
| Compensator | 36 | Operator Reflex Sight | Optic | 7 | |
| Monolithic Suppressor | 51 | 1mW Laser | Laser | 8 | |
| Barrel – | Unlock Level | Fast Melee | Perk | 9 | |
| FTAC 225mm Dominator | 15 | Tactical Suppressor | Muzzle | 10 | |
| FSS Revolution | 27 | Recon | Perk | 11 | |
| ISO 140mm CQB | 41 | Muzzle Brake | Muzzle | 12 | |
| FSS Nightshade | 48 | Cronen LP945 Mini Reflex | Optic | 13 | |
| Laser – | Unlock Level | FSS Vice ISO Grip | Rear Grip | 14 | |
| 1mW Laser | 8 | FTAC 225mm Dominator | Barrel | 15 | |
| 5mW Laser | 23 | Breacher Device | Muzzle | 16 | |
| Tac Laser | 52 | VLK 3.0x Optic | Optic | 17 | |
| Rear Grip- | Unlock Level | FMJ | Perk | 18 | |
| FSS Vice ISO Grip | 14 | 30 Round Mags | Ammo | 19 | |
| FTAC Elite ISO Grip | 26 | Merc Foregrip | Underbarrel | 20 | |
| ISO Tac-Form | 46 | APX5 Holographic Sight | Optic | 21 | |
| Optics – | Unlock Level | FORGE TAC Ultralight | Stock | 22 | |
| Aim-Op Reflex Sight | 3 | 5mW Laser | Laser | 23 | |
| Corp Combat Holo Sight | 5 | Frangible – Wounding | Perk | 24 | |
| Operator Reflex Sight | 7 | G.I. Mini Reflex | Optic | 25 | |
| Cronen LP945 Mini Reflex | 13 | FTAC Elite ISO Grip | Rear Grip | 26 | |
| VLK 3.0x Optic | 17 | FSS Revolution | Barrel | 27 | |
| APX5 Holographic Sight | 21 | Scout Combat Optic | Optic | 28 | |
| G.I. Mini Reflex | 25 | Lightweight Suppressor | Muzzle | 29 | |
| Scout Combat Optic | 28 | FORGE TAC Stalker | Stock | 30 | |
| Monocle Reflex Sight | 32 | Mo’ Money | Perk | 31 | |
| Solozero NVG Enhanced | 35 | Monocle Reflex Sight | Optic | 32 | |
| Viper Reflex Sight | 37 | Tactical Foregrip | Underbarrel | 33 | |
| PBX Holo 7 Sight | 40 | Fully Loaded | Perk | 34 | |
| 4.0x Flip Hybrid | 42 | Solozero NVG Enhanced | Optic | 35 | |
| Solozero Optics Mini-Reflex | 45 | Compensator | Muzzle | 36 | |
| Merc Thermal Optic | 49 | Viper Reflex Sight | Optic | 37 | |
| Cronen C480 Pro Optic | 53 | 50 Round Drums | Ammo | 38 | |
| Thermal Hybrid | 55 | Sleight of Hand | Perk | 39 | |
| Ammunition – | Unlock Level | PBX Holo 7 Sight | Optic | 40 | |
| 30 Round Mags | 19 | ISO 140mm CQB | Barrel | 41 | |
| 50 Round Drums | 38 | 4.0x Flip Hybrid | Optic | 42 | |
| Under Barrel – | Unlock Level | FTAC Vagrant | Stock | 43 | |
| Commando Foregrip | 6 | Ranger Foregrip | Underbarrel | 44 | |
| Merc Foregrip | 20 | Solozero Optics Mini-Reflex | Optic | 45 | |
| Tactical Foregrip | 33 | ISO Tac-Form | Rear Grip | 46 | |
| Ranger Foregrip | 44 | Heavy Hitter | Perk | 47 | |
| Operator Foregrip | 54 | FSS Nightshade | Barrel | 48 | |
| Perks – | Unlock Level | Merc Thermal Optic | Optic | 49 | |
| Frangible Disabling | 4 | ISO Collapsible | Stock | 50 | |
| Fast Melee | 9 | Monolithic Suppressor | Muzzle | 51 | |
| Recon | 11 | Tac Laser | Laser | 52 | |
| FMJ | 18 | Cronen C480 Pro Optic | Optic | 53 | |
| Frangible – Wounding | 24 | Operator Foregrip | Underbarrel | 54 | |
| Mo’ Money | 31 | Thermal Hybrid | Optic | 55 | |
| Fully Loaded | 34 | ||||
| Sleight of Hand | 39 | ||||
| Heavy Hitter | 47 | ||||
| Stock – | Unlock Level | ||||
| FORGE TAC Ultralight | 22 | ||||
| FORGE TAC Stalker | 30 | ||||
| FTAC Vagrant | 43 | ||||
| ISO Collapsible | 50 |
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