Watch it again: he uses the code to open the door right after consuming the target. That code was only known to three people. What if ZEUS
is collecting minds like a child collects moths? What if he has access to everything anyone he consumes has seen, done or heard? This would explain several things: its knowledge of BLACKWATCH
tactics, its ability to pilot aircraft and armor - something Mercer had no training in - as well as its uncanny skill in rooting out sleeper personnel. This would also be very, very
bad for all of us at BLACKWATCH...