Fiery Knights

Prolog

In the story Fiery Knights mankind has colonized and spread out in space.  This was a time of great energy, expansion, and exploration until the Plague. The Plague started when space debris crashed into a planet New Georgia.
A virus contained inside one of the meteors spread mutating humans into undead.  Once the infection started New Georgia was quarantine from the surrounding worlds.  Starships maintained a blockage, not allowing travel in or out for fear of the plague.
Supplies and goods could be dropped in, but no one could leave or enter. Still under the pressure of an Apocalyptic War the Government collapsed. Those uninfected turned to the only organization left, the Church.
Needing to fight the menace and cleanse the planet Church leaders dug deep in their historical records. They formed military orders modeled after the Middle Ages of Earth.  Knighthood was revived from the faithful who would swear to defend the faith and rid New Georgia from the plague.
Each knight carried a symbol of his office, a sword.