HomeGuidesCall of Duty: Modern Warfare III (2023)

Best MW3 ISO 45 loadout and class setupGet up close and personal with the best ISO 45 SMG loadout in Modern Warfare 3

Get up close and personal with the best ISO 45 SMG loadout in Modern Warfare 3

Image credit:Activision.

Image credit:Activision.

A close-up of the ISO-45 from Modern Warfare 2.

In our guide below, we’ll go over the best attachments, perks and equipment, and the secondary weapon choice we’d recommend to ensure this sidearm provides the back-up you need across MW3’s wide array of game modes.

Warzone 2 - Ultimate Beginner’s Guide | Everything You Need To Know About Warzone & DMZCheck out our ultimate beginner’s guide for Warzone 2.0. Join vid bud Liam as he gives you all the tips and tricks you need to survive within Warzone and DMZ.Watch on YouTube

Warzone 2 - Ultimate Beginner’s Guide | Everything You Need To Know About Warzone & DMZ

Cover image for YouTube video

Why use the ISO 45 in MW3?

With the ISO 45 currently sitting toward the lower end of ourbest SMG list, this gun is no longer as popular as it once was thanks to nerfs and the introduction of the ISO 9mm. Nevertheless, it’s still got a great fire rate, and well worth using especially if you already unlocked it in Modern Warfare 2. With a little elbow grease, we can easily maximise its potential with the following attachments.

Best ISO 45 loadout in MW3

The ISO 45 bounces everywhere while firing, so these five attachments will nicely stabilise your recoil and hip fire accuracy. To keep up the damage onslaught, you’ll also get some extra ammo to bolster your shots in those final throes of battle.

Muzzle: Bruen Pendulum

For your muzzle attachment, we recommend the Bruen Pendulum due to its significant buff to both horizontal and vertical recoil control. The Bruen Pendulum will also increase your accuracy and handling, which suffer on the ISO 45 compared to the rest of its SMG competition.

Underbarrel: Edge-47 Grip

Next up, the Edge-47 Grip is a solid pick for recoil stability during sustained fire. You’ll also see boosts in aiming idle sway and recoil control. ADS speed will suffer as a result, but we’ll work on that with our other attachments.

Rear Grip: A30 Stout

With only three Rear Grip attachments to choose from for the ISO 45, we’ve opted for the A30 Stout to continue the charge towards creating a steadier, more accurate SMG with increased gun kick and recoil control with a 7% boost across the board. You’ll take a small hit to your aiming idle sway, but it’s nothing to write home about.

Laser: Stovl Tac Laser

If you want to increase your hip fire spread and accuracy, recoil control, and Tac Stance spread, then the Stovl Tac Laser is the blue beam for the job. Keep in mind that it’s a laser that’s active from the hip, but if all goes well with this loadout you’ll be mowing enemies down before they can spot you.

Magazine: 45 Round Mag

Best ISO 45 class setup: Secondary weapon

ISO Hemlock or MCW.

The ISO 45 is focused on eliminating opponents at close-range, so you shouldn’t expect it to reach or excel at longer ranges. For your secondary weapon, you’ll need something with a little more scope. If you’re a fan of running the ISO variants, then theISO Hemlockis one of thebest Assault Riflealternatives that could back up your ISO 45 at mid-range. Even though it’s been nerfed since MW2, it’s still got some great stats to use as your second primary.

If you’re searching for a top-tier Assault Rifle to run alongside your ISO 45, theMCWsits atop our AR rankings for its fantastic all-around stats that will serve you well in damage, range, and accuracy.

Best ISO 45 class setup: Perks and Equipment

Gunner Vest, Quick-Grip Gloves, Bone Conduction Headset, Flash Grenade, Semtex, Smoke Airdrop

We’ve opted for the deadly combo of the opponent-confusingFlash Grenadefollowed up with the damage-dealingSemtexfor ourTacticalandLethalchoices. Last but not least, theSmoke Airdropis a solid strategic move if you’re looking to reposition and perhaps move closer to the opponent right before gunning them down.

Best ISO 45 alternatives in Modern Warfare 3

ISO 9mm or Striker

TheISO 9mmis an ISO SMG variant that brings a little more to the table and may well be your alternative of choice in Modern Warfare 3 for a more aggressive playstyle. If you want to go big, however, theStrikeris arguably thebest SMGin the entire game. Despite a small nerf since the MW3 beta, it’s still an excellent gun for damage output and range, as well as offering solid combat mobility.

That’s all things ISO 45 for now. If you’re keen to get your claws into some more MW3 content, then check out ourModern Warfare 3 best guns tier listguide for the greatest weapons in each category, or thebest loadouts guideto make sure you’re fully equipped no matter what game mode you enter into.