First, I did not realize this was a movie as well. That makes sense, because it reads like it was written in hopes that the guys from "Event Horizon" would be interested.
It was readable, but predictable. The plot moved much like a late 90's scifi/horror flick. For the most part, it wasn't too bad, but there were a few glaring plot holes.
First, I don't know why Paul and his family are in this. They are there, they die quickly, they are nowhere near the main plot, and it's pointless.
Second, if man has colonized the solar system, why is the battle on Mars WWI style trench warfare? And between poorly made analogs of Americans and Germans? Maybe so when the Britts and the Japanese show up, you have the whole set. It made no sense.
Third, Mitch gets a boneblade, then the next chapter it's gone. Did he magically UNmutate? When they kept hyping the savior and the key being nearby, I kindof figured a boneblade WOULD be the key. The fact that the key was a random sword they carried with them the WHOLE TIME from the monastery made no sense.
Finally, the first mutant encounter in the book was on another planet. That means the mutants have space travel. So when the machine turns out to be a spaceship, that doesn't really solve the problem. The mutants are just out there in space. Like they were before. With the rest of humanity that evacuated Earth. That seems like it would exacerbate the problem, not solve it.
Side note, the foriegn languages in the book are poorly translated and ill researched. "Omissa Spe". Abandon all hope in Latin. Not a gard phrase to find.