I am playing the game now for several month and i am really into it. Now trying to get into more realism style and tried the stupid idea of using couriers.

The idea sounds really good of it but i really seem to be too stupid to get these to work. I was trying around the various tips here from the forum but i am really unable to get ANYONE on the battlefield moving or doing anything from my commands. I was trying commands from various ranks to any type of unit and nothing works. No one moves, everyone is camping around

Can anyone help me out with this ?
Thanks in advance !
Patrick