A first post on this board and such a negative attitude. Ok, it's Monday...
I have just downed SM.79 in Hurricane Mk.I... So what is the problem again?
A history lesson for you:
In 1944, Bulgarian Avias B-534 attacked U.S. B-24s. They have used up all their ammo and no bomber was shot down.
Or do you think that 20-30mm canons have been introduced on fighters just because they were "cool"?
Now take a Hurricane IIC and a Spitfire and let me know if you are not able to kill SM.79. And yes... try to attack from other positions than 6 o'clock.