Quote Originally Posted by Red Shirt View Post
Yup. My thinking was that the arena was more that just a playground for his horde, it also served as training and selection for candidates.
Given that Arrow Head came from the prison wouldn't it make sense for the experiments that Ink was doing there must have coincided with what he was doing at the arena. Perhaps the two sites were just different pieces of the puzzle? One was a canteen (ew!) and the other was the laboratory.