Uhm... the fast zombies have the same settings that the predator zombies did before the most recent update. So basically you are complaining that the zombies are not also invisible!? For the update the specs for the predator zombies were lowered slightly so that the fast would be faster but not any faster than other zombies already were. The only real change has been the deformed which are still the slowest compared to the others on ze maps.

As for new maps those should be in the maps request section.

As for map votes I do not make that plugin

As for vote mute there is no plugin that does this that exists that actually works.