When an expansion comes out, so does a related content pack of aesthetic things (units, etc.) with the same name. Now, the question I feel dumb for asking [in part because I've been playing Paradox games for, like, five years now and suddenly realize I don't actually know the answer to this] is: Do those content packs come AS PART OF the expansion they are related to? ie, Buying Common Sense content pack when you already have the Common Sense expansion redundant? Or are they sold separately?
