again (it has been said in multiple threads, but in case users didn't read the other threads) : You DON'T NEED the data pack if you are NOT playing from disc.
Two reasons :
1. DLC are not accessible when using loadiine. Even if you install the data pack, they WILL NOT BE USED.
2. Data pack ARE the exact same files than the game, but installed on HDD to speed the loading instead of reading from the slow accessed disc.
IF you are using loadiine, the game's files are ALREADY not on the disc, so you don't need the data pack. It's already not reading the disc and loading faster from SD card.
If you want to load from the DLC Data pack, play from the disc, not from loadiine.
You will even have online feature !