Platoon Leaders in SG2

I've got a question concerning platoon leaders in SG2.	Does a 
platoon's command squad have a platoon leader _and_ a platoon
sergeant?  Whenever my group plays a game, the platoon command
squad never moves because all of it's actions are used to 
give additional moves to the other squads.  If the command
squad has it's own leader, then it could move/fire while the
platoon leader was directing his squads.		
		     
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