1. I read the subject line and thought: "Huh? He wants bomber guns to pass through friendly planes? So bombers don't have to worry about green guys flying around trying to protect them?"
2. I thought it already worked where if a bomber's guns don't have clear line-of-sight to the direction the player is firing, those guns don't fire. It might be a shortcoming in the film viewer that it looks like they shoot, but in the game I thought they didn't.