One of the templates is an RTS example. File-New Template/Example-RTS.
As a side note, making an RTS game is going to be hideously hard, and considering that you already have 3 or 4 games in development, and are quite new to construct, it might be wise to start off a little slower.
I know dude. I like to get my files upfront ready etc, but i won't hit a RTS now. I am having so much fun with SS / Side scroling games, + this is alwasy nice to work on, I've been trying for 7 years to dev a RTS on T3D but with sad hopes all fail, RTS is a 40 + man job - if the game is going to be a success.
But you don't want to hear that grap ...
Thanks for the reply