zombies make less noise

fixed missing textures

yo

Added seperate spawners for the Antlion Workers, so if you don't have HL2: Ep2, you can now just use the normal ones
Added a navmesh for bots
Removed broken outputs on the "Turn off spawners and remove NPCs" button
Removed duplicate walls
Fixed some textures that weren't aligned properly
Fixed clipping issues on some walls
Fixed alignment issues with a few windows
Fixed issues with AI nodes
Changed angle and brightness values on the sun so the lighting should look better
Changed the sound the health spawner buttons make
Replaced unseen textures with nodraw textures (This should increase preformance)
Moved the lights in the spawner rooms and control room closer to the ceiling
Moved the locations of the Antlion spawners
Some redundant walls have been replaced with a single larger wall
Slightly decreased the model fade distance