Take command of air and naval assets from post-WW2 to the near future in tactical and operational scale, complete with historical and hypothetical scenarios and an integrated scenario editor.
Something else to keep in mind is that as you modify the default ambiguity, you may increase or decrease the difficulty or the
game's adherence to real life as it were. I think the devs probably shipped the game this way as a compromise for the different levels of skill.
I am not a noob but compared to many here I am definately not hard core YET, so this option is helpful, but I have not used it.