After you do the soldier data import that Basti told you about,go to the BF4 in game store to the premium section and download your premium file. Close BF4 (not just minimize), after the file downloads start BF4 and then return to the premium section of the BF4 in game store and download all the expansions covered by premium. Allow them to download and make sure that they install. After they install start BF4 again and you will have access to the expansion packs.
Next go to multiplayer, server browser and click R3 in order to open the server browser filter and add the new maps and game modes so you can find games on the expansion packs.
