That will be the black ops teams getting the next stage of the experiment ready. Notice the press briefings? HQ reads like a badly programmed robot and the David Ashford automaton has flesh which is clearly non human. I found this information after searching the internet:
This cryogenic storage and the vacuum sealed room ensures that the T-800's flesh will not decay or necrotize from exposure to warm, oxygenated air that may contain pathogens. The living tissue makes it very difficult for humans to identify T-800's. A significant number of these Infiltration units have therefore been able to breach Resistance defenses and slaughter Resistance fighters. However, trained "sniffer" dogs posted at various checkpoints are effective at detecting this new threat.