readded some texture that were thought to be junk, for unknown reason, prove essesntial

Fixed missing texture due to using an old model that used different material directory.
Moved some fences.

attempt to fix the material

Cleaned up and improved nav mesh

Optimized the map
Improved Meridian Gate model
Added more cubemap, turn Meredian Gate model back to prop_static so it can show up in cubemap
Improved infected nav

added more env_cubemaps, which means you will see more reflections on object with reflective material
added $envmap on drum material
improved infected navigation
changed some material on the face of some brushes

Fixed using no draw on some faces in the meridian gate

Improved more navigation flow

Improved A.I navigation flow.

Increased infected spawn.

Added shrubs at the two corners.

Fixed the faces on the feet of the drum being translucent, somehow exporting from .smd instead of .dmx solved this problem?

Added soundscript in the maps folder in place of using ambient_generic entity in hammer, now the custom sound will replace Survival start sound(Just for this map).

Removed ambient_generic entities, and recompiled