There is a bug in Advanced with no pilot killed chits Blue Max Game 659780

Why I don't fire against Becks? before I losing the gun?

32. Becks fired at Gladiatore, distance 3 with no deflection. 4 points. Damage BB (Base:3,Stb:+1,Dice:+5).

My plane's special damages:
Engine damaged: no speed 3 or 4 maneuvers
1 gun destroyed
Fabric tears: no restricted maneuvers

32. Gladiatore fired at Becks ?

Can I throw bolts of the machine gun or launch the pieces of the plane ... please send me a solution