Call of Duty: Black Ops II does not natively support split-screen on PC, you can achieve it using the Nucleus Co-op
Thus far, Activision has not aggressively targeted the Black Ops II modding community, but players should always proceed with caution. It is recommended to play these mods on an alternate account or accept the minor risk involved in modifying game files. black ops 2 pc split screen mod
While consoles were capped at 4 players, the PC mod can support up to 8 players in both Multiplayer and Zombies, provided your hardware can handle it. Call of Duty: Black Ops II does not
t6mp.exe or t6zm.exe) that injects split-screen capabilities without altering core game assets.