Unlike the console versions (Xbox 360/PS3), which feature a dedicated "Split-Screen" option in the main menu, the PC version was designed strictly for single-player (online or LAN) and dedicated server multiplayer. There is no official setting, cheat code, or menu toggle to enable this feature in the vanilla game. Free - Remixpacksclub Alternative
Here is the solid content regarding . The Hard Truth: Native Support It is important to clarify immediately: Call of Duty: Black Ops 1 on PC does not natively support split-screen gameplay. Sveta Petka Krst U Pustinji Ceo Film Extra Quality [NEW]
However, if you are determined to play split-screen on PC, there is a widely accepted "Modding" workaround. To play split-screen on PC, you must mod the game. The community has created a mod that forces the game to load two player profiles simultaneously and stretches the viewport to fit two screens.