possible to let ai fight till death??

[David198502]

hey guys.if i set up a mission in full mission builder, the ai planes engage, but soon stop to fight and prefer to fly in formation, even if im at their six or twelve.its pretty boring to have a mission with more than 60 planes, only to have a dogfight which lasts not more than 2minutes. after that you can chase them and shoot one after the ohter down from the skies, without any reaction from them.
it doesnt matter if i set targets for them, they just disengage after a really short time.
is there a way to force them to fight?like in old il2 1946 where the ai fought till death when you set up a quick mission?