I was really tired and watch Eureka Seven last night when I thought of this.
What about, a space station, being boarded by like, deformed and maimed aliens, and the space station was supposed to protect against anything in the air and such, and this desease swiped across the universe, and now everyone who's infected can use their brain too a full one hundred percent however......
...They're, ZOMBIES. (Or something.)
And it's all in the future, and so we have all these cool weapons, and the zombies know how to use them, and we're basically screwed but we fight back because we're humans and we don't know when to stop fighting, plus there's a small chance that if we get away, we can go to a planet Earth has been saving for when we wipe out Earth's resources.
And to be infected they just have to touch you.
But they'll eat you.
For they are...
HUNGRY PSYCIC ZOMBIE BEASTS FROM OUTER SPACE. (That's the title, just so you know.)