DLC = Downloadable Content. Is HoW, TTK, and TDB content that has to be downloaded? Why, yes, yes it is. Then, by using Braidlington's formula, and Packson's law.... along with simple logic... yup, TTK, HoW, and TDB are all DLC! YAY MATH! DLC that expand on the base game are called Expansions, but are still DLC. Other games, like CoD, have Downloadable Content that doesn't expand on the base game. It just adds a zombie map and a few multiplayer maps. Thus, all Expansions are DLC, not all DLC are Expansions. #TitanMasterRace