Alien Satan

Three quarters of a million years ago, the most advanced civilization in the universe was attacked. In a last ditch effort to save itself, it turned space into a toxic sewer for a hundred thousand light-years across. When spaceships were found gutted with identical battle marks, the three heavy hitters of the space travelers: The Humans, The Namakkal, and The Krabbeltiere laid an ambush, using the fastest frigate in the fleet as bait. The battle showed that the lower the energy signals, the longer the ship lasted. A team of fighters with the lowest energy signal combined with the highest kill ratio was sent on a suicide mission. Their leader described them as Super heroes pillaged from a junkyard.