Newb league questions

By Cabello, in Arkham Horror League

hello all, well this is the first time ive looked at joining the league, but have been playing Arkham since it came out. have a few questions that may have been answered elsewhere, but i did not find to be particularly clear if they were. so, when a senario mentions which things should be used, should everything from the other expansions be removed? like madness/injury cards epic battles, mythos cards, and location cards, or just the items and characters?

With the scenarios, only the expansions listed may be used. Nothing (including monsters, madness/injury cards, epic battle cards, cult memberships) may be used unless specified. For the first 2 scenarios of League number 2, only the base game is used. Pretend you have just purchased the base game and opened it. That is all that is allowed in the scenario.

Happy Investigating,
JR

thank you very much for your timely reply!!