Originally posted by jeroldthemouse: I would like to know what the guidelines for the command rating are
No real information about this has ever been put out by Ubisoft. It's generally suspected that it's an admixture of how much territory your units cover on the battlefield, how much health they lose, and how many units you defeat compared to how many of your units are downed or killed.
In the end, though, it doesn't really seem to impact much. I think it acts as a small multiplier for CR payouts, but I'm not sure that it makes as much difference as most people think.