There was that guy from the fireteam who would run around by himself with a knife. Easy prey, right? Wrong. 1v1, he kicked my ass twice, parrying the combistick and just using the knife to finish me off. He called for the helicopter by himself and nearly killed me, I had second wind before his team caught up with him.
Conclusion? If the predator goes melee, go melee back 4v1 and you will kick his ass in no time, especially due to the fact that switching predator weapons takes forever.

