I have recently started playing Battlegroup Panzergrenadier Deluxe, which is the third edition of the Panzergrenadier mentioned by a couple of posters above. As stated it caters for 15 and 20mm and strongly features Command and Control. You can find an AAR in the WWII boards on TMP, if you can bear to go back there! I’ve only played four games so far but want to keep going, so it gets my vote for the time being.
Less enthusiasm, please. This is Britain.