I bought the Dead Island GOTY Ediiton and I can't seem to enable the Ripper Weapon. I see it(+ other DLC in the GOTY Ediiton), but I cant' seem to use it immediately. How do I accomplish this ? Do I have to waity until I reach a later stage of the game ? I thought it would be there immediately. This also goes for other two DlC packs in the GOTY Ediiton. Thanks.