A/N: Everything belongs to their respective owners

Okay, in this story I will be using the brutal doom mod as well as doom to help create a character for Doomguy, who will be known as Flyn 'fly' Taggert. Also, Doomguy will be mostly sane under the effects of the berserk back he will act like the comic doomguy, he will also be mostly undefeatable...mostly. I will stick with RWBY canon for the most part but expect several major changes.

Please enjoy

Prologue

Nearing the end of his strength, Flyn Taggert scrubbed the sweat out of his eyes and charged the last Demon. Probably not the smartest move, but he was running out of options fast. So he punched into the creature's stomach and ripped out its liver, at least by human standards, and crammed it into its throat. The demon exploded in a shower of gore thankfully avoiding the man who had killed the demon who then noticed something wrong with his portal home. Shit was the only word that ran through his mind. His only means of escape is closing. With no real clue as to where it goes or what he would have to deal with when he get's there he leaps through with a perfect mixture of bravery and stupidity.

A/N Thank you for reading and thanks to Jaeger Gipsy Danger for beta editing