Call of Duty: Black Ops 7 campaign requires a constant online connection and has zero checkpoints — mission levels are designed for four, necessitating repetitive tasks if you play alone

https://www.tomshardware.com/video-games/call-of-duty-black-ops-7-campaign-requires-a-constant-online-connection-and-has-zero-checkpoints-mission-levels-are-designed-for-four-necessitating-repetitive-tasks-if-you-play-alone