The Mutant Chronicles universe was first a Pen and Paper role-playing game published by Swedish game studio Target Games. There were also several boardgames, a set of tabletop wargaming rules (with associated lines of miniatures), as well as comic books.
The characters of Mitch Hunter and Max Steiner were previously playable in the video game "Doom Troopers" for the Super Nintendo Entertainment System.
The character 'Lt. Maximillian von Steiner' get his name from famous movie composer Max Steiner (King Kong (1933), Casablanca (1942) and hundreds more).
Prior to making the film, director Simon Hunter wrote, directed and edited a seven minute teaser film to create buzz and to show the desired mood to the producers and actors.
Mitch Hunter's rank insignia on his lapels is actually the insignia of a U.S. Army Sergeant First Class (E-7), just flipped upside-down.