Hello everyone  im new in this but lets start: 
 
So, The first thing is. How zombies appeared in Alcatraz? well i have a theory. 
 
Remember when Maxis and Richtofen were testing the teleporting Machine? Well they used fluffy so when fluffy was transported i think that fluffy ends in Alcatraz so in Alcatraz she pipe her babys when she finished, she bite a prisoner and well i think that when fluffy comes back to attack Samantha and Richtofen it isn`t fluffy i think its one of his babys and the real fluffy stills in alcatraz or the Aether. 
 
 
 
So in this image i can say its fluffy trying to get out of the aether or something. 
 
Now WHo Controls The zombies? 
Well i think that the one that controls the ascension monkeys controls the zombies cause the monkeys have red eyes (: so i dont know what to think, im thinking of the cosmic silverback but well what do u think about this theory?