Change Vampire to something unique

[DyssalC]

Vampires are basically changelings with more crowd control capability in exchange for less strength in single combat. I personally think that vampires would be better if they were a corruptive force rather than a destructive one, roaming around the station, constructing dens in secluded maintenance halls, and slowly growing their ranks until they have enough members to overthrow the human crew.

I really like this idea. I can picture the (remaining) human crew holed up in QM, waiting for their life saving lasers to come through as they clutch a Sec ID they got from a corpse, and then the lights go out and the vampires pounce.