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.
Players still want to relive the Call of Duty: Black Ops multiplayer experience 13 years after its debut. However, they were unable to find matches due to service difficulties. Activision has recently deployed server fixes to reduce these issues, significantly increasing the number of people actively playing the game.