A few new guns, a few new vehicles, and a couple new maps. The gameplay is still very linear and predictable, as most Battlefield games are, but you'd think an expansion pack would change that. It didn't, or it didn't do enough.

That said, it's still worth getting if you're a fan of the series. It adds a new level of weapon upgrades to your current inventory that you can play on Battlefield 2 as well, I believe, and that's always good.