I've been making the same question for a while, there are 2 tutorials on working with a rts game like in the aum magazine issue 2 and 10 (or 11) I think, but I'm getting to the conclusion that A6 is not quiet powerful to make real RTS games unless using external dll's wich means that you need to be a good c++ programmer.

I've several ideas for rts, if you wanna join be welcome.