The highly compressed version of Call of Duty: Black Ops 4 for PC is designed to make the game more accessible to a wider audience. By significantly reducing the file size, the game can be downloaded and installed on computers with lower specifications, ensuring that more players can enjoy the game without worrying about storage space or system requirements. This compressed version still retains the high-quality gameplay and graphics that the franchise is known for, making it an attractive option for PC gamers.