Hubert, I would like to see 3 research areas added for tactics. One for air, sea, and land. This would be a very expensive research area that increases not only a units attack and defense values, but also morale, movement, supply, and possibly even the number of strikes. This would be the equivalent of a land unit learning combined arms doctrine, manoeuver. It may possibly only go as high as 3 points and should cost the same as two of the other more expensive research items such as heavy tanks.