I was thinking of leaving Justice missiles with the damage they have and allowing them to fit up to 3 missiles per launcher. That right there would pretty much save them (along with increasing the number of missiles on the market) because while they would have very low total damage, they would deal it quickly and would easily pierce the heaviest armor. For Retribution missiles I was thinking just make them a lot more powerful but leave them single-shot. I like your idea of city damage. Perhaps the Retribution missiles could deal very heavy damage to a target but have a large blast radius which could damage the city. You could use it against high-flying alien craft to minimize city damage, or use it to quickly take down a ship that is attacking the city already and potentially cause less damage than you prevent. It would also be a good way to level a building quickly if you're really mad at some corp. And if you are skilled/lucky enough, you might even get a chance to take out multiple small craft with one missile. Finally, they need some sort of navigation system that will make them fly around buildings. Their long range isn't really an advantage because if you fire the missiles at that range, you're pretty much guaranteed to hit a building.