If you decide to go the traditional torrent route (for the campaign or offline play), follow these "survival" rules to avoid malware:

Stick to verified names like FitGirl Repacks or Dodi Repacks . They compress the files heavily and are generally vetted by the community for being clean.

A custom client that provides dedicated servers, anti-cheat, and all DLC for free.

Keep an eye on Steam sales . Black Ops 2 is notorious for staying at $60, but it occasionally drops to $15–$20 during seasonal sales.

The official Steam servers are often plagued by security vulnerabilities (RCE exploits) and hackers. Plutonium is widely considered the safest and most active way to play.