I've finished this game many times on Original mode, however the Red Blood Option never seems to appear. I know this game has it because the Red Blooded texture files are all intact in the texture folder, but the option seems to be absent.
I doubt anyone will answer on this board as it looks dead, but I had to try.
Welcome to Fallout 3, where worship of explosives is perfectly acceptable, and "Zombie" is the new N-word. GT: Katamariballs