Stars are crap. They give a bonus to morale, but only around the general, not all the troops on the battlefield. To better represent the morale of an army we use traits, whose morale increasing abilities effect all the troops on a battlefield. It is possible to get better in command stars, but don't expect it to be as easy as in Vanilla - you have to work for it.

Check your general's traits to see what areas of war he is good at and use him accordingly.

Foot