artillery changes target when under fire

Hi, I realised that when an artillary layes siege to a target, and another army , for example a cruiser begins to fire at it, it still remains on targeting the first given target instead of changing the target to the new threat. maybe this could be solved by changing the unit into agressive mode, but this brings other disadvantages with it, so that this is seldomly used. I would like to propose that the unit first of all tryes to stay alive before it tryes to stick on the order given. therefore it would be good to first return fire before it kills the given target. what do you think? greeting Gr0tten0lm PS: in the steam browser you don't see what you are typing in this textfield when usiing steam , xept you mark it with the mouse or crtl +a , please solve this fist so my typing might be bad.