split-screen, Call of Duty: Black Ops Cold War, zombies mode, two players, cooperative gameplay, couch co-op, console gaming, dual controllers, shared screen, action-packed, undead hordes, survival, in-game teamwork, first-person shooter, immersive experience, dynamic lighting, detailed textures, post-apocalyptic environment, split-screen interface, HUD elements, multiplayer fun, intense combat scenarios, strategic positioning, weapon selection, ammo management, power-ups, barricades, wave defense.