What story and multiplayer files can i delete from COD Infinite warfare and World War 2 to free up storqage without breaking the game?

I have IW and BO4 installed and want to get WW2 but the problem is these games are HUGE and i have absolutely no interest in them outside of the Zombies game modes, unfortunately i cant find what file belongs to what online and 'distribution' websites dont split them off into neat folders. Is there a way for me to delete ONLY the multiplayer and story related things to keep Zombies functional and reasonable sized like Steam and Battle.net allow me to do?

I also want to keep camos, though i dont know if that is relevant. If they are linked to story and mp in a way that dont let me delete one without the other then im fine getting rid of them though