This is a case of collectives. One would say your generation has left its mark on history but it is the members of the generation that have black clothes. The team is large means it has many members; the team are large means it is composed of members who are large. This is perhaps a fine point of proper English that is fading into oblivion.
As I found - sion, tion pronounces as SHUN or H(F)HUN (something middle between H and F) - depends on regions of Sweden. Also skj, stj, sj, ch give this sound. And g pronounces as J before e, i, y, ö, ä, j and when rg, lg in end of words. Sorry if I'm wrong. My recommendation is to find pronunciation rules in Swedish, it helped me a lot.