Is this a legal way to take a burglar down? It's not killing them.?

Okay, I have a paintball gun, and the gun can shoot 15 balls per second and shoots at very high velocities as anyone who plays paintball knows. So, would it be legal is some scumbag were to come into my home to unload on him? Would it be legal if I took out his eyes, or even both of ehm? And if he tried to get back up before the police came would it be legal for me to unload on him again without him coming at me or no? Basically the concept of this defense is to keep them down until the police arrive to take the scumbag (and I have a lot in my area) away. So is this legal in Chicago, IL?