Foregoing the storyline, as it's a DOOM-like game. It doesn't need a story, other than demons, big guns, and lots of firepower.
I have 2 fullscreen modes set up, one with all the status info, and one without. So it doesn't clog your view, I still need to adjust the viewing a little bit, but it's looking good so far. Don't pay attention to the level (that's level 2 wolfenstein 3d, just with doom walls replacing the originals).