As I said in other threads, CA should learn from Blizzard's lession: every strategy game of it since StarCraft included a map editor, with warcraft 3 and SC2 the most advanced, completed tools given to users of the time. In the end, Warcraft 3 custom maps are what kept the game alive even after 10 years. But the map editor must not be an half-hearted effort.
From what I read, theres no way to incorporate maps into singleplayer campaign, which means the editor essentially excludes folks that do single player campaign only. A pity :\