*the creatures seem unaffected by the light based weapons or any of the other weapons the Alliance or Federation throws at them, and continue to rip through the Federation and Alliance forces like a hot knife through butter, killing everything in their path and destroying everything around and on the planet [spoiler]They aren't darkness based life forms. They are based on a matter from a matter from another universe, so the weapons of light will just annoy them. You may want to call your men to retreat before they get destroyed. [/spoiler]