Fog of War would be cool if you could make it so it only maps the part of the level the player sees and after like a specified amount of time it hides...that would be cool especially if there were npc commands. also maybe make it so a player can go to the map and like view a level...might be kinda cool for making sure you know where you wanted to go...kinda like the Ctrl+map warp but just view the level for 10 seconds...
