Bad Company 2's Beta HAD Vehicles, the Core aspect and mode of movement and strategy was present. Vehicles and no vehicles, it's a dynamic gameplay and playstyle change. Hence, the Bc2 Beta was MUCH better than the BF3 Beta.
Without Vehicles, it isn't a Battlefield game at all, not that all you do is roam around in vehicles but destroying them, watching out for them and making strategies variously makes up the whole game's playstyle. BF3's Beta is just BAD, simply put. They should've included vehicles. Also, there are alot of bugs but expect them to be fixed by the time the game comes out, if not, patches and more patches!
All in all, It was a very unwise decision from EA to include this map, that too without one of the main thing's about Battlefield included. It does not provide a good example for the final game and/or the franchise at ALL. Caspian border's another story.