The Zombies mode in Black Ops 2 is arguably the best in the series. With distinct modes like Tranzit (a large, open-world style map), Grief (competitive survival), and classic survival maps, it offered endless hours of cooperative gameplay. The Origins map, in particular, is a fan favorite that brought the original Black Ops story to a close.
: Some users on M-series Macs encounter crashes in Zombies mode. A known community fix involves adjusting compatibility settings to "force single-core operation" within the Windows environment. 2. Boot Camp (Intel Macs Only)
Here are the primary methods to achieve this, depending on your Mac model and technical proficiency.
The game is not free. But you can play the legitimate copy you bought on Steam using Whisky (free tool) or CrossOver (paid). If you absolutely can't pay anything, consider playing Call of Duty: Mobile or the free-to-play Call of Duty: Warzone via cloud gaming (Boosteroid or GeForce Now).