I was thinking it'd make for a cool single player map to use a jedi temple map and play as anakin and lead the assult on the Jedi Temple. You could have clone troopers as NPCs helping you fight jedi, I would attempt this but my abilities to make levels or anything are quite limited. Just throwing it out there
Well, your skills will start to grow as soon as you start the project. Generally speaking it's not useful or interesting at all to start a mapping project that doesn't require you to learn anything new. I think I'm not alone with this opinion.