Forum:Bioshock (XBOX 360) - Plasmid Pack doesn't work

I just downloaded the Plasmid Pack because I noticed it is free, but when I started a new game on easy tody I noticed that in Neptune's Bounty at the Gatherer's Garden there is no Sonic Boom, neither one of the new Gene Tonics.

Also, I don't have survivor difficulty to choose from or the option to turn off Vita Chambers. What did I do wrong?

I saved and checked my Xbox 360 drive. I see that the DLC has a "BioShock" entry for itself, and my savegames have one "BioShock" entry for themselves. Shouldn't they be in the same entry?

I mean, for example, I have the DLCs for Monopoly Streets and they are in the same file as my game data is (there is only one entry on my drive for this).

I've read somewhere that the DLCs are only for the uncut version, but I have the uncut one (18+).

It's the XBOX 360 Classics version. Not the metallic case, it's the game cover with the Big Daddy on it.

I think I should mention that I downloaded the DLC via the marketplace (I went in the Xbox menu to games, search games -> Games on Demand -> From A to Z -> B -> BioShock).

Can I download the DLC on another way?

Usually, I also can start a game when it is in my disc drive (like Halo 4) when I go to the marketplace and click on it. For BioShock, that isn't the case.

Quick help would be really appreciated. :/