If you have the physical version of Call of Duty: Black Ops 4, expect to download a mammoth day one update.
Disc users have to download and install the day one update for Treyarch’s first-person shooter, Activision warned. The day one update is roughly 50GB.
This day one update must be installed completely to play multiplayer, zombies and specialist headquarters. But Blackout, the battle royale mode, is playable once installation is about 30 per cent complete (16-20GB).
Source: Eurogamer Call of Duty: Black Ops 4 requires a 50GB day one update to work