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.
It's important to mention that while Black Ops 1 is still playable in 2024, the player population may have decreased compared to its prime years after release. This means that finding multiplayer matches might take longer or result in fewer opponents.