I know you have to do a halo like assassination for a one hit kill, but I can't even do it. I know you hold down the knife button, but my guy instead just equips the knife and does nothing. Before, he'd grab the enemy and deliver a killing blow.
Ive managed the animation twice , other times he just slashes wildly until the enemy turns and blows my brains out. There must be a trick to it because ive had guys rip my dog tags off when ive been running past them
Works fine for me every time. Walk up behind the person > Knife > Animation Kill.
This is how you get the animation everytime. If you try from any other angle, you will just swipe at the guy and get shot. I had my best knifing game today, I got three snipers on the left side of the subway, they were all about
five feet from each other. I wish there had been a fourth and they were all in a squad. That would have been awesome to get a Squad Swipe ribbon by knifing.