How to Play Black Ops 2 with Bots Offline on Xbox 360: You Can't

You cannot. The Xbox 360 version of Black Ops 2 has no bot support for offline multiplayer.

• No built-in combat training mode (unlike PC/PS3 patches).
• No mods available on Xbox 360 to add bots.

Alternatives

• Online Multiplayer: Play against real players (servers may be sparse).
• Zombies Mode: Solo or local co-op survival.
• PC Version: Supports bots via mods/combat training.