What hack is this?

Well, I was playing a min ago and a hacker does this what is it?

OPK mate
its called
One Position Kill

OPK,or Super bullets(In This case Super-Knife)

wow im surprised u have that post count and still dont know what that is...

ITS OPK.
they activate it, and on their screen, it looks like everybody is in front of them.
they just take out their knife, and kill you all from one spot.
It's VIP Only.

Question Answered.
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