Norm Koger's The Operational Art of War III is the next game in the award-winning Operational Art of War game series. TOAW3 is updated and enhanced version of the TOAW: Century of Warfare game series. TOAW3 is a turn based game covering operational warfare from 1850-2015. Game scale is from 2.5km to 50km and half day to full week turns. TOAW3 scenarios have been designed by over 70 designers and included over 130 scenarios. TOAW3 comes complete with a full game editor.
Turn based games mean a lot of abstraction, some examples
Player 1 moves and defeats Napoleon at Leipzig. Player 2 moves and send Davout from Hambourg to help poor Nappy, however he is moving after the Allies have already moved for a week turn. Another example, Davout Corps is placed 1 hex away from Hambourg, but it is Allied player turn, he moves a Prussian Corps and takes Hambourg under the nose of Davout, who doesn´t reaction, he is waiting 1 week turn for orders before reacting. If anything, rather than instant reaction is that sort of slow reaction a bigger problem, but it is a problem in any turn based IGO/UGO game. You have to bear in mind the abstraction involved in the game. That is, in any case, a minor concern, to me it is much more critical the inability to conduct sieges in any realistic way, for instance.