Is Call of Duty: Modern Warfare 2 Fun Without Xbox Live?

Depends entirely on your preferences and definition of "fun."

Offline Content (No Xbox Live Needed)

• Single-Player Campaign: Critically acclaimed story with action, cinematics, memorable characters—fully standalone.
• Special Ops Missions: Cooperative challenges playable solo or locally with a friend.
• Free Exploration: Wander maps, experiment with weapons/gear (without competitive thrill).

What You Miss

• Multiplayer: The core competitive experience—firefights, team battles, ranked ladders.
• Community & Competition: Online friends, ranked matches, the thrill of live competition.

Verdict: If you love single-player/co-op, MW2 offline is great. If you prioritize multiplayer competition, you need Xbox Live. It's about how you enjoy gaming.