You do not need the whole 250GB game. When installing via the Battle.net launcher:

Steam has it all. Including Call of Duty. But since cod is a craptivision game you'll need to install battle net too. Yes GOG.com is safe.

Curious, John decided to investigate further. He navigated to the link and was taken to a website that claimed to offer the highly compressed version of the game.

: Consider alternative strategies for saving space, such as upgrading your storage to a larger SSD (solid-state drive), which can significantly improve your computer's performance and storage capacity.

allows users to significantly reduce the game's footprint by choosing what to install. You can install Multiplayer only (approx. 35 GB)