added stringtables in map 1

Removed images from map 2 and recompiled
built cubemaps
built strngtable

updated missing texture.

- Updates made to events in map 2 and 3... they now work properly.
- Some clipping updates
- stringtables rebuilt and included

Updated sodding stupid stringtables

Updated detailing on maps 1-4

corrected camera angle of crow in intro
added hud icon for pick axe weapon

- updated onslaught script in map 3 so it actually works...

Added Detailing to map 3

- added helecopter arrival for the finale
- fixed some nav issues with the finale