I just bought the axis and allies world game, and i am having trouble with the fighters, if you are attacking with some infantry tanks and 3 fighters and one bomber against infantry tanks and one fighter, do the attacking fighters and bombers just bomb all the defending units or does the one defending fighter get to dogfight the attacking air units, and if there is a dogfight does it last longer than one round, and if the attacking forces win the dog fight do the remaining attacking fighters and bomber get to do a bombing fun against the ground units? also does a defending fighter get to defend against attacking ground units?