What purpose does Killshooter serve? For example, today my friend lost a 262 because a friendly dove in front of him while he was lighting up a enemy plane. This resulted in the my friend getting hit by his own 30mm. Why? What purpose does this have in game? Why should my friend loose his 262 when friendlies dive in front of his guns? I am not asking for Killshooter to be turned off, I am asking for it to be removed completely. As in, if someone shoots at friendlies NOTHING happens. AT ALL.
That is all. 
That would alter the balance, already tilted towards the attack by lag, into a wholesale slaughter of the defender.
If side A <bleeps>s up and team shoots, they SHOULD be a man down. The only two ways to accomplish this is either to have friendly fire or kill shooter. Friendly fire produces more realistic results, if it weren't for the massive greifing that would happen. That leaves only kill shooter as an option.
The oft mentioned "shoot a friendly, loose your ammo" doesn't work because the defending player isn't aware that my Mossie is suddenly toothless and I can still force him to blow energy and position by flying as though I do have ammo.