How do you know day one game patches are getting out of hand? When stores are selling games early to accommodate those massive downloads. UK retail chain GAME is letting people buy Call of Duty: Black Ops 4 as early as six hours ahead of time to make sure they've had time to download the necessary 50GB launch day patch for the official midnight debut on October 12th. This shouldn't be an issue if you buy a digital copy (you can preload the latest version well before then) but disc buyers may spend a lot of time staring at progress bars on October 11th.
Source: GAME (Twitter)