the gersch device (or black hole device) is a secondary grenade that was made by scientist gersch in assinstion(ironicly he died from it) it sucks zombies into it and kills them.
it may not seem like it but it is pulling every zombie on the map into it but it lasts but a short time so it can only suck in ones close to it.
if any player jumps into it they will be teleported
to any random location already opened
