Call Of Duty Modern Warfare 2: Prestige Edition.
This is probably the most random extra to come with a game I've seen yet. A pair of fully functional night vision goggles, MW2 branded and everything.
Haha, either way, go enter this contest for a chance to win the bundle.
Here are the answers for those too lazy to look it up.
1. Infinity Ward
2. PS3, Xbox 360 and PC
3. November 10th 2009
5. Dual-wield handguns