Fan Casting Terminator vs Predator

A T-800 Terminator was sent back in time for one reason, to terminate John Connor. Meanwhile, a Predator stalks what appears to be a serial killer, killing victim after victim until the Predator decides it's worth hunting. Additionally, the Predator mask's vision modes show some odd readings from the man due to his unnatural strength. The Predator attacks the quarry only for it to shrug off blade, disc, and staff attacks. Even the shoulder cannon doesn't kill it. What began as a game of cat and mouse quickly turned into hunter vs. hunter.