Hi,
I was reading this and thought to add that a knotless breakaway can be achieved simply by tacking the paracord together with heat: cut it in half (or as many pieces as you want), and heat each end under flame (holding them side by side, slightly apart), then stick the ends together and smooth out the seam before it cools. This bond is relatively sturdy, yet it breaks apart with a good tug (the force of which depends on how thouroughly the ends are melted together; I would go for a light tack though, sealing each end first and then reheating less so for the connection, i.e. not pushing them together too much). And for maximum breakaway potential, the lanyard can be made as a chain of interlocking loops (or as a straight series of breakpoints), each fused together this way.