does anyone know how long it takes for a game to appear in your recent games? or if there is a way to recover a game that didnt appear in this section?

I have gotten this twice now. I do not know the exacts, but both times i did not fire a single bullet, i used the base mele to 3000 points and bought the bowie knife, a few kills later i saw the green and heard the speach. I was not repairing anything, and i did not take any hits.

My guess is either
A) survive past round 5 without shooting anything
B) Get x amount of knife kills without using a gun

I also think it must be lost very easy, because i was unable to find any effect that carried over to my next game, i believe i could have been making the extra points for knife kills but did not pay much attention because i was surprised at the green flash knowing about persistent jug, quick revive, cash back, headshots, insta kill, barriers, and carpenter (wow thats turning out to be a big list)

At first i thought it increased my run speed but i was solo so i couldn't really compare

Could you try and post some proof please?

sounds cool though

Hey man, sorry to disappoint,
this isnt for knifing, its the permaperk for cashback.
everytime you buy perks you should get points back now. thats what it looks like to me anyway

There is most certainly a perk involving knife kills, but i cannot pinpoint the effect, i have not noticed 1k points for a kill, so as someone suggested we could be seeing a combination of cash back and knife perk in the video...

As i stated in my previous comment, dont shoot a single bullet, and to make it much easier buy the bowie knife. Sometime around round 5-6 you should get the flash, and i have gotton it two games in a row, so like i also said before, whatever it is, its very easy to loose, im assuming go a round without getting a knife kill? Or X amount of kills without a knife kill similar to deadshot