This is how it'd go down. Let's say they're fighting in a warehouse, 'cause that's the first place that came to mind. Batman would be stalking John, in the shadows. After watching him for weaknesses, Batman would descend on him. John, seeing a dot on his tracker, would spin, ready to fire, but Batman would already be closing in on him. John would throw a punch that Batman would dodge, and Batman would punch him in the visor, cracking it. Chief rolls backward to get room to fire, but Batman would cut his rifle in half with a thrown batarang. Drawing his sidearm in an eyeblink, John takes aim and fires, and Batman is forced to take cover behind some boxes. After running out of bullets, John would load another mag and begin closing in on Batman's position. He'd look around at where Batman was hiding...and find nothing. Suddenly, a cord wraps around John from behind, and with a pull, Batman yanks him off balance, but not off his feet. John spins, breaking free, and lands a solid punch to the gut. Batman is disoriented, but not too badly injured, and he sidesteps another swing and counters with a punch to John's already broken visor, shattering it and sending bits of reinforced glass into John's eyes. Another few minutes of punching, and John's down for the count. And [i]that's[/i] a how a fight between those two would go down.