here is an FF idea. If you kill a firendly, the 1st time you loose 50 perk points and all the kills your earned in that sortie. This simulate a punishment by a superior officer. The 2nd time you do it, you loose ALL your points in all catagories, and you loose all the kills earned in the tour. THe 3rd time, your plane's icon is changed to a black color, and in your country's text buffer, it says "<name> has killed 3 teammates" and at that point, any team member who shoots him down, is awarded the same as killing an enemy. This lasts until you change sides, but your FF kills are stored. Reach 20 and you are banned. Reach 50 and your account is suspended. Reach 100 and your account is cancled.