Something that I've never found out through years of play.

[typhoon]

Lets try to explain this properly. If you have a unit on the front line but want to rest it so on your turn it neither moves fires nor digs in. If the unit fires during your opponents turn has the unit rested.  My guess is that the unit has not rested but want to check for sure.
 And on another note just for conversation how do others decide when to rest or fire. I tend to rest over 100 fatigue that is try to pull a unit out of the line. I also tend to dig in units with low ammo and not fire them another one is units under 50 fatigue I move at night those above I tend to try to keep still.These are my own kind of rules and in no way do I always stick to them in the heat of battle would be very interested if others have similar habits.