Hello, I'm new and when I started I had the choice to research the Barracks, which I didn't do because I don't want to do the fighting. Now I am following the quests and I have one to research the Barracks even though I don't want to. So do I have to do it to keep the quests coming? If so it's a waste of my limited space to place a building I won't use - or can I sell it after? I have done a bit of a forum search on this but didn't see anything related.