In all fairness, it’s pretty much my job.

To be fair we’re a race of undead killing machines powered by a mysterious substance coursing through our veins capable of wiping out entire squads with nothing but our fists and the esoteric ability to warp the fabric of space itself.

Why would you have four different races of enemy? Why wouldn’t you focus your story on a single bad guy that’s easy to develop antipathy for (or, you know, actually give the player a clear reason for shooting the bad guys)?