The only thing that's on the disc is map geometry, and even that isn't complete. That's common practice because it makes the download and update for the DLC smaller and less time consuming for the customer, not to mention making life easier for the developers coding the world. Also, the expansions were advertised right alongside the game from day one... so at no point was anything "sliced" out of the planned release.
There is no scam here. Just a bunch of retarded, entitled customers who have no concept of how the world works or how to pay attention to advertising when purchasing something. Everything, all of this, was advertised this way from day one. All you had to do was not buy it if you didn't like the way it was going to be delivered.
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