I don't know about any RTS-tutorial. An RTS is a rather complex game and I think chances to find a turorial are not good because tutorials usually demonstrate simple aspects that you want to combine. As you probably want the game to be multiplayer-playable in the end you should probably start out with the networkstatemanagement sample.
As for a tutorial for animations,
here is one. If you want multiple animated characters on the screen you will probably want to combine it with the instancing sample.