(adsbygoogle = window.adsbygoogle || []).push({}); Go into a Squad Deathmatch and add everyone on the opposing team, hopefully they should add you and then just play enough rounds where you knife them, simple enough right. Thats how i got it anyways

I've thought of this before... and no one adds me.

Yea its a bummer trophy, but not hard when u finally get one on the other team. The demolition trophy was the real pain in the ass. Wish u good luck, try to find some people to boost with and you get it in no time.