I'd put the flag(s) in a more easily accessible location. Easier grabs make for more interesting gameplay. I also don't see the point of 2 flags in 1 room. Also, for your trim, don't make super thin brushes on top of other brushes, Instead, break the wall up into sections and make all the visible surfaces flush. That will reduce polygons, make the map look cleaner (inside and out of the editor), and avoid little edges that people can get caught on.