'The Predator' doubles down on the monsters in exclusive Comic-Con footage

What's scarier than a Predator?
How about two Predators, one of which is even bigger and meaner than the Predator we already know and love to fear?
That's apparently the premise of The Predator, as revealed in exclusive footage shown at Comic-Con Thursday. 
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The clip finds all the human heroes (including ones played by Boyd Holbrook, Olivia Munn, Trevante Rhodes, and Keegan-Michael Key) on a middle school campus at