Dude seriously? First of all it was the "Honey Badger" from Call of Duty: Ghosts, second, it's the R3 button for the melee attack, C). He only got caught 'cause he was trying to t-bag the victim.
(Sarcasm).
On a serious note though, a couple friends of mine bought multiple PS4 systems and are now trying to sell the extra systems (3) for $600-700. They are having no luck selling them.