Outside of the turks head knot variants, there are few techniques that are appropriate for making paracord knife wraps. I found an image of a knife wrap that David Hopper made. It was a recreation of an old sword wrapping technique
Take down- Get out of the path of the bullet. Isolate and neutralize the weapon Neutralize the opponent. The rest is all style.--Believe it or not, this is almost all Aikido, though he's using some force, since his attacker has little momentum.
Josephine Knot Tutorial The josephine knot is my favorite knot ever. You can use it to make bracelets, pretty up straps on bags - all kinds of things. The josephine knot seems delicate and complicated - but I promise its super easy to do!