As reported by IGN, players with early access to the game's single-player campaign found that the total file size for Call of Duty at installation which also includes the Modern Warfare II campaign, Warzone, and Call of Duty HQ now comes in at 234.9GB on PlayStation 5.
Then a further 100-plus GB can be expected once the full game is downloaded in full. Those that have got their hands on the new Call of Duty early have reported that you will need about 172GB for PC and a whopping 240GB on PlayStation 5.