I played this yesterday. Doesn't feel like a whole new game, more of a mod. It's what BF:V was to BF42. Same flavour, different colour. Will probably take a while to get used to the handling of the different weapons and vehicles and maps, but it runs pretty much the same as BF2. So far.
I have it and installed. There are no extra papers in the box, and there are only two EULA's you have to agree to: one from MS for DX9c and one for PunkBuster. There are no other eulas or weird things.