I just gave up my teutonic campaign because of the "balanced" units:
https://img291.imageshack.us/img291/2338/shieldsr9.jpg
As you see this unit has a shield oh wait it doesn't...
https://img73.imageshack.us/img73/8508/noshieldly1.jpg
But this unit has no shield oh wait it has.
Who decides on the invisible shields and the visible non existent shields?
Rant over