Black Ops 1 has a limited "Combat Training" mode, but the T5 Bot Warfare mod significantly improves the experience by adding smarter AI and more game modes. Download the latest release from ModDB or GitHub.
Go to the main menu and look for Combat Training or Local Play . Black Ops 1 has a limited "Combat Training"
If you do not want to risk downloading cracked executables (which can contain malware), here are two completely legal ways to play Black Ops multiplayer offline for $0: no internet needed
Full XP progression (separate from online MP), no internet needed, works forever. Cons: No real players; progression doesn’t carry to real online MP. works forever. Cons: No real players