Navmesh Fix

Should bring roads back

!!! Its crucial to use latest new mission files from 27.04. from mega download to make the following work again: !!!

There is another Hotfix incoming soon. This will...

* Fixes 2 ServerCrash Bugs
* Fixed: Broken Navmash at some locations
* Z are now spawning at Alcatraz again
* Z are now spawning at Temple again
* Mjolnir is not spawning "everywhere" on the map. Instead now where it belongs: TempleCoreCenter!
* some other min bugs

Got some report of constant rain. For further debug, please disable (set enable= "0") within cfgweather.xml the mission weather controller (mission folder) for this fixupdate.
Lets see if this helps.