I think the weapons developed by Bob for space combat are good, but I think there are some other good alternatives. If they were fighting during earth, why not use the solar energy and make a super SCUT ping like the Others did? And that Dyson Sphere tech could be used on burning asteroids and min suns to get extreme amounts of energy. What about using all that energy from the sun to create a giant Gama radiation beam? Or a HUGE light ray? Like a lazer, But super lazer? I dunno. I'm just rambling.