USAS-12

The Daewoo USAS-12 is a shotgun featured in Call of Duty: Iron Wolf.

Iron Wolf: Havoc
The USAS-12 is briefly seen in the film's second part in the hands of Kuala Lumpur Airport more heavily armed security officers.

Call of Duty: Iron Wolf
The USAS-12 only appears in multiplayer.

Multiplayer
The USAS-12 is unlocked at level 26 in multiplayer.