balcony nav fix for first gate fight

player clip over gate to prevent trigger

new level and all optimalisation changes pushed

* ai_disabled handled globally on all maps
* final text made brighter independent of lighting

* testing global solution for ai_disabled in is02_extraction (in theory should fix ai_disabled bug for manual saves)
* brighter credits
* changed low quality car in is01_late_arrival

* Attempt to fix the crashing: seams like it may have been caused by 2-shell shotgun ammo on some combine so this was removed
* Removed the invisible wall bug
* Changed car blocking supressor that didnt have working glass and door
* Fixed one wall that combine could shoot through in some cases

added 'ai_setenabled 1' triggers in is02_extraction

attempted fix for crash

Created In Siege.