Steam is having a sale I want to take advantage of, 66% off of Borderlands and it's expansion packs. I only want one of the packs, "The Secret Armory of General Knoxx". My question is, do you need the two previous add-on packs before you can access this one? Thanks in advance for any help. :)
EDIT: sorry for my bad wording, I was in a hurry, I meant I wanted the one add-on pack with the core game, I just don't want the previous 2 add-on packs.