Most RTS games give you a choice. SupCom gives you the option of no Fog of War, Explored (where is starts out grey-ish but you can see all terrain) or unexplored (where everything starts out totally black). That's great, everyone has their own preferred style and they can set up the game how they want. But if they force everyone into only one type then I think it really limits ...
By far the worst Fog of War I have ever seen was in the first Mechcommander game. The developers used a limited color palette as an excuse to only have one layer of fog. All black or totally revealed. And once you revealed a location you had line of sight to it for the rest of the game. It was very easy to suicide a light scout Mech into the ...