SableSparkz
Come here for the Best Call of Duty videos
If you still can't get it to work, all I really can say is it might take some time, but keep watching this video, and try to lineup where I was and knife when I knife.
Wanna see more amazing Zombie Glitches? Then be sure to Subscribe
Knife Lunge Tutorial:
1. Go up to a zombie and put them in the middle of your cross hairs
2. Then press Y/triangle and then knife right after that (Y,B)
3. Switch back to the gun you just switched from by pressing Y/triangle (Y)
4. Walk away from the zombie and put it in the middle of you cross hairs
5. Then knife when your cross hairs turn red
6. You should lunge towards the zombie and fall on the barrier