Zero Vs Ripa.

A deadly rivalry/war between one of The Covenant's finest and most feared, and a hybrid demon that's been around since long before his time. What will happen? Who will win? There's only one way to find out..

Disclaimer: The events within the first chapter are featured to build up towards the meeting and the fight between Ripa and Zero.
As for the characters, Ripa 'Moramee is a canon character from the Halo franchise the Arbiter Malevolence is just a made up community title. And Zero Hellsing is a character I made by piecing bits of from anime and demonology together.

It's not going to be a good story. It was merely a spur of the moment idea that turned into a not so well put together tale of death and destruction leading to a showdown by the end of it.