looks fun but i would make a wall of fusion coils behind the batters and the pitcher has nades or something and the batters stop the nades from reachin the fusion wall and theres a wall with a gap in it for the zombie to throw nades at so the zombie doesnt cheat and just run up and hit it.
a way better idea would be to make it vip escort!! i did that it works alot better but it should be done on a larger map like avalanche or standoff or sandtrap.. But ya make it vip escort so then if a vip kills someone they are out ( because they died/caught the ball) have fun!