I am having trouble with economy (and medicine) career points. It seems that they are not working. I am not receiving any discount on armory. With 10% discount, e.g. a basic Springfield gun should cost 9$ instead of 10$ when buying but it costs 10$ as without discount. It is strange since other career attributes (army organization, recon, etc.) are working. Is there something that I do not understand properly about economy career points system or is there some issue in the game?