** UPDATE 17th June 2015 **
News from PSC HQ:-
Due to popular demand the Battlegroup Kursk campaign supplement is now available to purchase as a pdf for a very reasonable £10. The rules have been taken out of this book and are also available in pdf format for £5 or £2.50 if bought in one of the campaign book bundle deals. AND, the rules themselves are also available in pdf format in German, French, Spanish and Polish!