!!! !!! DO NOT OVERWRITE DS2DAT0.DAT !!! !!!

Depending on your version of the game, you may need to do some file shuffling to make this mod work.

If you have a DS2DAT0.DAT, you'll need to rename all existing DS2DAT#.DAT to one number higher, eg:

DS2DAT0.DAT -> DS2DAT1.DAT
DS2DAT1.DAT -> DS2DAT2.DAT
DS2DAT2.DAT -> DS2DAT3.DAT
DS2DAT3.DAT -> DS2DAT4.DAT
DS2DAT4.DAT -> DS2DAT5.DAT
DS2DAT5.DAT -> DS2DAT6.DAT
DS2DAT6.DAT -> DS2DAT7.DAT
DS2DAT7.DAT -> DS2DAT8.DAT
DS2DAT8.DAT -> DS2DAT9.DAT
DS2DAT9.DAT -> DS2DAT10.DAT

Then extract DS2DAT0_DLC4PC.DAT and rename it to DS2DAT0.DAT.

Play game.