The best ISO 45 loadout in Warzone

The ISO 45 is one of the two new weapons that arrived today with the Season 4 update in Call of Duty: Warzone. It’s unlocked by reaching the D19 Sector on the Season 4 Battle Pass and it’s a free tier, meaning players don’t have to purchase the pass to acquire it. Once players have unlocked the ISO 45, they can begin leveling it up to eventually equip the best loadout for it in Warzone.

Activision describes the ISO 45 as a “room clearing” SMG that “dominates with a high fire rate and the stopping power of .45 Auto rounds.” It appears that the ISO 45 will be a challenger to the Fennec 45, which currently sports the highest fire rate in the SMG class. Early on, the ISO 45 has proven to be an incredibly strong weapon that is also decent at mid-range gunfights, especially if players equip the right attachments.

To see the best loadout for the ISO 45 in Warzone, check out the guide below.

Best ISO 45 loadout in Warzone

Since the ISO 45 is already so strong at close range, the loadout we have chosen is more tailored to improving its long-range capabilities. This way, players will be able to succeed no matter the range an enemy is at.

• Barrel: 9″ PTX Trainer
• Stock: SK-3 Cheetah
• Underbarrel: FTAC Ripper 56
• Magazine: 45 Round Drum
• Rear Grip: EXP Shear

The lone attachment that improves the ISO 45’s mobility is the SK-3 Cheetah. The rest of the loadout is focused on boosting the ISO 45’s damage range, recoil control, and magazine size. The magazine in particular is vital to the loadout as the ISO 45 shoots so quickly that it depletes its standard 30 rounds very quickly. With the 45 Round Drum, players won’t have to reload nearly as often.