The bump in consoles' available memory this generation has meant that much larger textures can be used for all facets of games, which in turn has sent their install sizes skyrocketing. Fortunately storage isn't quite the premium it once was, but some games do seem to be taking the mick.
In the case of Call of Duty: Infinite Warfare, if you install the base game, the remastered version of Modern Warfare and the Modern Warfare multiplayer mode, you'll need a total of 144GB of space, which for many low-end SSDs either maxes them out or will nearly do so with a Windows install as well.
It works out to 74.2GB for Infinite Warfare, with 44.9GB for the Modern Warfare remastered edition and a further 25GB for its multiplayer mode (thanks PCGamer).
This is a little bit higher than the 149GB that Microsoft's Windows Store claims that the games will take up, suggesting that perhaps a Day One patch could take us up to that near mythical 150GB mark, but we're not quite there yet.
Although technically this is two games in one, the fact that both work out to around 75GB with multiplayer modes included seems crazy. It wasn't that long ago that 15GB games were considered a large install.