When you are in trenches, the Arc of Fire stick are placed
infront of your trench.
Because your buddies are also beside you on your left and right,
the AOF stick is supposed to create an overlapping fire with you
buddies(which a commander must do personally when he assign the
location of your trench).
MOST important of all, due to the overlapping fire, the arc of fire
stick is to limiit your firing within this arc so that we wont have
a blue on blue during the confusion of firing.
Cheerio!!!!