ZM3 levels stuff

ZM3 auto-respawn stuff was implemented into ZM1 and 2, and damage perk from ZM3 is extended for all the mods. But you see, you can raise it only by playing two ZM3 maps, and it's too hard to rise levels at hi-end. Including that people are usually playing new ZM maps like Crater and Temple, it is hardly impossible to rise the ranks and get that badge too.

My poroposion is simple - to allow to collect the experience from other ZM maps too.