10. Huge Install Sizes
What on Earth is going on with the size of Call of Duty: Modern Warfare and its individual components, such as Warzone?
At the time of writing, if you have Warzone and Modern Warfare's multiplayer installed, it takes up over 200GB on your console. That's a massive chunk of your space for other games, particularly as game install sizes get larger and larger. If you're on an OG PS4 or Xbox One with a 500GB hard drive, expect to move things around constantly to accommodate for Warzone and associated Modern Warfare content!
Even worse is the alarming frequency that these massive patches are coming out. Season 4, which has been live for a couple of weeks, had a massive update to get to Season 4, then another 30GB patch for Season 4 Reloaded just recently.
The exact reason for the huge file sizes has never been fully disclosed other than the developers stating that there's a 'tonne of content'. It's widely believed that the audio assets Modern Warfare uses are extremely high quality and taking up a massive amount of space, although this has never been fully confirmed.
An external hard drive is looking like more and more of an essential going forward if you want to continue playing Warzone and ever playing anything else.