Major projects aren't a joke, too many would-be game developers jump into the shark pool. Not everyone can make out of the pool alive
The RTS is quite a demanding project - just ask Ashley, he's been working on his pet project for how long? And Jesse guy who runs Construct Corner, he's been doing something RTS wise, I believe. But those two are programmers.
It is easy to come up with ideas and artwork, but actual implementation is not that easy. You need a solid framework to use as a foundation for the project - a stable engine that you can expand and work with.
Why don't you look into existing RTS engines? There are quite a few open source engines out there, you just compile them, learn how they function, then proceed to implement your own modifications, story and artwork.
A real RTS is nothing to sneeze at. No sane artist or programmer will join you as long as you only have your head in clouds; they want to see some solid foundations - they want to see that you are standing firmly on ground before they decide to dedicate their time and resources to YOUR cause. Until then, they're happy risking on their own projects.
We don't mean to kill your idea - we are just saying that it is not prepared. At the moment it is nothing but an idea in your mind. We can't work with that. Nobody can, really, nobody is willing to take on a job unless they know exactly what is it that they are doing.
I suggest that you start small, make a simple RTS. Once you get a working prototype, you have an idea of the process already, you know the limitations and such. Once you conquer that, you can think about more complex games.