Virgin Media says Call of Duty update caused busiest day on record Call of Duty: Warzone caused the network to experience its busiest day on record with the average user consuming over 20GB of data on February 25. It said that the latest lockdown saw its five million customers download 3.1GB more data each day compared to the first lockdown suggesting people had embraced home working and learning. Virgin Media said that February 25 set records on its network in terms of how much data is downloaded on average per user. The average customer downloaded 20.77GB on the day which is nearly 3.5GB more than the previous record which was set last year.