In which Call of Duty game does the mission 'Clean House' appear?

The mission “Clean House” appears in Call of Duty: Modern Warfare (2019). It is the game’s fifth campaign mission, in which Sergeant Kyle Garrick joins Captain Price and an SAS team during a nighttime raid on a London townhouse.

The operation targets an Al-Qatala cell connected to the Piccadilly terrorist attack. Players move floor by floor through the building, using night-vision equipment and carefully checking rooms for armed threats and civilians. The mission’s confined setting and emphasis on identifying targets make it notably more deliberate than many traditional Call of Duty set pieces.

A common mix-up is confusing this reboot with the original Call of Duty 4: Modern Warfare from 2007, or with Modern Warfare II, which is a separate sequel in the rebooted continuity. “Clean House” belongs specifically to the 2019 reboot and is often remembered as one of its signature campaign sequences.